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		<id>https://www.explainxkcd.com/wiki/index.php?action=history&amp;feed=atom&amp;title=2633%3A_Astronomer_Hotline</id>
		<title>2633: Astronomer Hotline - Revision history</title>
		<link rel="self" type="application/atom+xml" href="https://www.explainxkcd.com/wiki/index.php?action=history&amp;feed=atom&amp;title=2633%3A_Astronomer_Hotline"/>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;action=history"/>
		<updated>2026-05-23T15:40:51Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
		<generator>MediaWiki 1.30.0</generator>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=346501&amp;oldid=prev</id>
		<title>172.70.58.3: /* Explanation */ fixed capitalisation issue</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=346501&amp;oldid=prev"/>
				<updated>2024-07-16T10:50:22Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation: &lt;/span&gt; fixed capitalisation issue&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 10:50, 16 July 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l11&quot; &gt;Line 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 11:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This comic is a joke about {{w|Helpline|helplines}}, and the experience of the skilled people staffing them, who often have to deal with callers with a much lower understanding of the subject, seeking assistance with things that may seem very basic from the point of view of the technician, or where they have completely misunderstood the nature of the issue.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This comic is a joke about {{w|Helpline|helplines}}, and the experience of the skilled people staffing them, who often have to deal with callers with a much lower understanding of the subject, seeking assistance with things that may seem very basic from the point of view of the technician, or where they have completely misunderstood the nature of the issue.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The comic starts with someone having called the &amp;quot;Astronomer &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;hotline&lt;/del&gt;&amp;quot;, hence the title. Judging by the way the helpline employee, [[Cueball]], starts the call, by asking for a description of the weird lights, it is implied that this is the main/only purpose of the helpline, or is, in practice, the subject of most of the calls they receive. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The comic starts with someone having called the &amp;quot;Astronomer &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Hotline&lt;/ins&gt;&amp;quot;, hence the title. Judging by the way the helpline employee, [[Cueball]], starts the call, by asking for a description of the weird lights, it is implied that this is the main/only purpose of the helpline, or is, in practice, the subject of most of the calls they receive. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The caller is in panic, and doesn't know how to describe the light. Cueball is used to this and asks the caller to stay calm, then starts to go through his checklist, asking them if it is daytime, because if it were, he might assume they have just noticed the Sun. Most people are familiar with the Sun{{Citation needed}} and would not need help in identifying it, although people have also mistaken the Moon for a 'mysterious light in the sky' at times. Asking this could thus seem very condescending, but it is like when the employee at a tech support hot-line asks if the computer is turned on, or if the caller tried to restart the computer, see [[806: Tech Support]]. It may also refer to the most immediate danger, as looking directly at the sun is a bad idea.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The caller is in panic, and doesn't know how to describe the light. Cueball is used to this and asks the caller to stay calm, then starts to go through his checklist, asking them if it is daytime, because if it were, he might assume they have just noticed the Sun. Most people are familiar with the Sun{{Citation needed}} and would not need help in identifying it, although people have also mistaken the Moon for a 'mysterious light in the sky' at times. Asking this could thus seem very condescending, but it is like when the employee at a tech support hot-line asks if the computer is turned on, or if the caller tried to restart the computer, see [[806: Tech Support]]. It may also refer to the most immediate danger, as looking directly at the sun is a bad idea.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.70.58.3</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=338689&amp;oldid=prev</id>
		<title>1234231587678 at 18:26, 2 April 2024</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=338689&amp;oldid=prev"/>
				<updated>2024-04-02T18:26:51Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 18:26, 2 April 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l27&quot; &gt;Line 27:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 27:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Some people (often {{w|Unidentified flying object|UFO}} enthusiasts) tend to get a little over-excited about calling every light in the sky they don't expect a UFO. This comic takes this to the extreme, where someone calls a helpline because they saw fireflies, and thought they were UFOs. While UFOs are not mentioned by name, they are heavily implied. Technically, such a person would be correct, so long as the lights are actually unidentified, flying and caused by a physical object, but if the expectation is that it is an extraterrestrial spacecraft then the truth (if discovered and also accepted) can be disappointing to some people, rather than lead to an interesting alternative avenue of appreciation of whatever phenomenon it truly is.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Some people (often {{w|Unidentified flying object|UFO}} enthusiasts) tend to get a little over-excited about calling every light in the sky they don't expect a UFO. This comic takes this to the extreme, where someone calls a helpline because they saw fireflies, and thought they were UFOs. While UFOs are not mentioned by name, they are heavily implied. Technically, such a person would be correct, so long as the lights are actually unidentified, flying and caused by a physical object, but if the expectation is that it is an extraterrestrial spacecraft then the truth (if discovered and also accepted) can be disappointing to some people, rather than lead to an interesting alternative avenue of appreciation of whatever phenomenon it truly is.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a reference to bugs that have gaps of several years between emerging from their larval state. Most famous are the {{w|periodical cicadas}}, 13- and 17-year cicadas, that only emerge every 13 or 17 years depending on species. The 17 years in the title text thus refers to the 17-year cicadas. Every 17 years the bug hotline hires a bunch of temporary staff, either because there will be more callers due to the unexpected new bug no one has seen for 17 years, or it could be because they just like to emulate nature and thus do this every 17 years.&amp;#160; Or alternately, the 17-year cicadas may just like to gather inside a trench coat and apply for jobs answering calls about weird bugs. The largest 17-year cicada appearance in the USA is called {{W|Brood X}} which last occurred in 2021 and before that 2004. [https://cicadas.uconn.edu/broods/ There are smaller broods in other years], but the majority come out with 17 years interval, and the next is expected in 2038.&amp;#160; The joke in the title text is that the employment statistics for the weird hotline have to correct for this fact, a reference to the decennial {{w|United States census}}, which involves so many people as to affect aggregate employment statistics. Periodical cicadas have been mentioned before in [[2263: Cicadas]] (see details about them in that &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;comics &lt;/del&gt;[[2263:_Cicadas#Trivia|trivia section]]).&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a reference to bugs that have gaps of several years between emerging from their larval state. Most famous are the {{w|periodical cicadas}}, 13- and 17-year cicadas, that only emerge every 13 or 17 years depending on species. The 17 years in the title text thus refers to the 17-year cicadas. Every 17 years the bug hotline hires a bunch of temporary staff, either because there will be more callers due to the unexpected new bug no one has seen for 17 years, or it could be because they just like to emulate nature and thus do this every 17 years.&amp;#160; Or alternately, the 17-year cicadas may just like to gather inside a trench coat and apply for jobs answering calls about weird bugs. The largest 17-year cicada appearance in the USA is called {{W|Brood X}} which last occurred in 2021 and before that 2004. [https://cicadas.uconn.edu/broods/ There are smaller broods in other years], but the majority come out with 17 years interval, and the next is expected in 2038.&amp;#160; The joke in the title text is that the employment statistics for the weird hotline have to correct for this fact, a reference to the decennial {{w|United States census}}, which involves so many people as to affect aggregate employment statistics. Periodical cicadas have been mentioned before in [[2263: Cicadas]] (see details about them in that &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;comic's &lt;/ins&gt;[[2263:_Cicadas#Trivia|trivia section]]).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>1234231587678</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=338688&amp;oldid=prev</id>
		<title>1234231587678 at 18:26, 2 April 2024</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=338688&amp;oldid=prev"/>
				<updated>2024-04-02T18:26:29Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 18:26, 2 April 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l27&quot; &gt;Line 27:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 27:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Some people (often {{w|Unidentified flying object|UFO}} enthusiasts) tend to get a little over-excited about calling every light in the sky they don't expect a UFO. This comic takes this to the extreme, where someone calls a helpline because they saw fireflies, and thought they were UFOs. While UFOs are not mentioned by name, they are heavily implied. Technically, such a person would be correct, so long as the lights are actually unidentified, flying and caused by a physical object, but if the expectation is that it is an extraterrestrial spacecraft then the truth (if discovered and also accepted) can be disappointing to some people, rather than lead to an interesting alternative avenue of appreciation of whatever phenomenon it truly is.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Some people (often {{w|Unidentified flying object|UFO}} enthusiasts) tend to get a little over-excited about calling every light in the sky they don't expect a UFO. This comic takes this to the extreme, where someone calls a helpline because they saw fireflies, and thought they were UFOs. While UFOs are not mentioned by name, they are heavily implied. Technically, such a person would be correct, so long as the lights are actually unidentified, flying and caused by a physical object, but if the expectation is that it is an extraterrestrial spacecraft then the truth (if discovered and also accepted) can be disappointing to some people, rather than lead to an interesting alternative avenue of appreciation of whatever phenomenon it truly is.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a reference to bugs that have gaps of several years between emerging from their larval state. Most famous are the {{w|&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Periodical &lt;/del&gt;cicadas}}, 13- and 17-year cicadas, that only emerge every 13 or 17 years&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, &lt;/del&gt;depending on species. The 17 years in the title text thus refers to the 17-year cicadas. Every 17 years the bug hotline hires a bunch of temporary staff, either because there will be more callers due to the unexpected new bug no one has seen for 17 years, or it could be because they just like to emulate nature and thus do this every 17 years.&amp;#160; Or alternately, the 17-year cicadas may just like to gather inside a trench coat and apply for jobs answering calls about weird bugs. The largest 17-year cicada appearance in the USA is called {{W|Brood X}} which last occurred in 2021 and before that 2004. [https://cicadas.uconn.edu/broods/ There are smaller broods in other years], but the majority come out with 17 years interval, and the next is expected in 2038.&amp;#160; The joke in the title text is that the employment statistics for the weird hotline have to correct for this fact, a reference to the decennial {{w|United States census}}, which involves so many people as to affect aggregate employment statistics. Periodical cicadas have been mentioned before in [[2263: Cicadas]]&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, &lt;/del&gt;see details about them in that comics [[2263:_Cicadas#Trivia|trivia section]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a reference to bugs that have gaps of several years between emerging from their larval state. Most famous are the {{w|&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;periodical &lt;/ins&gt;cicadas}}, 13- and 17-year cicadas, that only emerge every 13 or 17 years depending on species. The 17 years in the title text thus refers to the 17-year cicadas. Every 17 years the bug hotline hires a bunch of temporary staff, either because there will be more callers due to the unexpected new bug no one has seen for 17 years, or it could be because they just like to emulate nature and thus do this every 17 years.&amp;#160; Or alternately, the 17-year cicadas may just like to gather inside a trench coat and apply for jobs answering calls about weird bugs. The largest 17-year cicada appearance in the USA is called {{W|Brood X}} which last occurred in 2021 and before that 2004. [https://cicadas.uconn.edu/broods/ There are smaller broods in other years], but the majority come out with 17 years interval, and the next is expected in 2038.&amp;#160; The joke in the title text is that the employment statistics for the weird hotline have to correct for this fact, a reference to the decennial {{w|United States census}}, which involves so many people as to affect aggregate employment statistics. Periodical cicadas have been mentioned before in [[2263: Cicadas]] &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(&lt;/ins&gt;see details about them in that comics [[2263:_Cicadas#Trivia|trivia section]]&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;)&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>1234231587678</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=293402&amp;oldid=prev</id>
		<title>172.69.33.207: /* Explanation */ done</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=293402&amp;oldid=prev"/>
				<updated>2022-08-24T20:17:05Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation: &lt;/span&gt; done&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 20:17, 24 August 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l8&quot; &gt;Line 8:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 8:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Explanation==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Explanation==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;{{incomplete|Created by 17 YEAR CICADA TRYING TO LOOK LIKE A FIREFLY - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This comic is a joke about {{w|Helpline|helplines}}, and the experience of the skilled people staffing them, who often have to deal with callers with a much lower understanding of the subject, seeking assistance with things that may seem very basic from the point of view of the technician, or where they have completely misunderstood the nature of the issue.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This comic is a joke about {{w|Helpline|helplines}}, and the experience of the skilled people staffing them, who often have to deal with callers with a much lower understanding of the subject, seeking assistance with things that may seem very basic from the point of view of the technician, or where they have completely misunderstood the nature of the issue.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.69.33.207</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=287157&amp;oldid=prev</id>
		<title>172.71.102.5: /* Explanation */</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=287157&amp;oldid=prev"/>
				<updated>2022-06-18T10:01:53Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 10:01, 18 June 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l27&quot; &gt;Line 27:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 27:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Some people (often {{w|Unidentified flying object|UFO}} enthusiasts) tend to get a little over-excited about calling every light in the sky they don't expect a UFO. This comic takes this to the extreme, where someone calls a helpline because they saw fireflies, and thought they were UFOs. While UFOs are not mentioned by name, they are heavily implied. Technically, such a person would be correct, so long as the lights are actually unidentified, flying and caused by a physical object, but if the expectation is that it is an extraterrestrial spacecraft then the truth (if discovered and also accepted) can be disappointing to some people, rather than lead to an interesting alternative avenue of appreciation of whatever phenomenon it truly is.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Some people (often {{w|Unidentified flying object|UFO}} enthusiasts) tend to get a little over-excited about calling every light in the sky they don't expect a UFO. This comic takes this to the extreme, where someone calls a helpline because they saw fireflies, and thought they were UFOs. While UFOs are not mentioned by name, they are heavily implied. Technically, such a person would be correct, so long as the lights are actually unidentified, flying and caused by a physical object, but if the expectation is that it is an extraterrestrial spacecraft then the truth (if discovered and also accepted) can be disappointing to some people, rather than lead to an interesting alternative avenue of appreciation of whatever phenomenon it truly is.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a reference to bugs that have gaps of several years between emerging from their larval state. Most famous are the {{w|Periodical cicadas}}, 13- and 17-year cicadas, that only emerge every 13 or 17 years, depending on species. The 17 years in the title text thus refers to the 17-year cicadas. Every 17 years the bug hotline hires a bunch of temporary staff, either because there will be more callers due to the unexpected new bug no one has seen for 17 years, or it could be because they just like to emulate nature and thus do this every 17 years.&amp;#160; Or alternately, the 17-year cicadas may just like to gather inside a trench coat and apply for jobs answering calls about weird bugs. The largest 17-year cicada appearance in the USA is called {{W|Brood X}} which last occurred in 2021 and before that 2004. [https://cicadas.uconn.edu/broods/ There are smaller broods in other years], but the majority come out with 17 years interval, and the next is expected in 2038.&amp;#160; The joke in the title text is that the employment statistics for the weird hotline have to correct for this fact. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt; &lt;/del&gt;Periodical cicadas have been mentioned before in [[2263: Cicadas]], see details about them in that comics [[2263:_Cicadas#Trivia|trivia section]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a reference to bugs that have gaps of several years between emerging from their larval state. Most famous are the {{w|Periodical cicadas}}, 13- and 17-year cicadas, that only emerge every 13 or 17 years, depending on species. The 17 years in the title text thus refers to the 17-year cicadas. Every 17 years the bug hotline hires a bunch of temporary staff, either because there will be more callers due to the unexpected new bug no one has seen for 17 years, or it could be because they just like to emulate nature and thus do this every 17 years.&amp;#160; Or alternately, the 17-year cicadas may just like to gather inside a trench coat and apply for jobs answering calls about weird bugs. The largest 17-year cicada appearance in the USA is called {{W|Brood X}} which last occurred in 2021 and before that 2004. [https://cicadas.uconn.edu/broods/ There are smaller broods in other years], but the majority come out with 17 years interval, and the next is expected in 2038.&amp;#160; The joke in the title text is that the employment statistics for the weird hotline have to correct for this fact&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, a reference to the decennial {{w|United States census}}, which involves so many people as to affect aggregate employment statistics&lt;/ins&gt;. Periodical cicadas have been mentioned before in [[2263: Cicadas]], see details about them in that comics [[2263:_Cicadas#Trivia|trivia section]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.71.102.5</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=287151&amp;oldid=prev</id>
		<title>108.162.221.163: /* Explanation */ minor copy edits</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=287151&amp;oldid=prev"/>
				<updated>2022-06-18T06:06:05Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation: &lt;/span&gt; minor copy edits&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 06:06, 18 June 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l13&quot; &gt;Line 13:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The comic starts with someone having called the &amp;quot;Astronomer hotline&amp;quot;, hence the title. Judging by the way the helpline employee, [[Cueball]], starts the call, by asking for a description of the weird lights, it is implied that this is the main/only purpose of the helpline, or is, in practice, the subject of most of the calls they receive. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The comic starts with someone having called the &amp;quot;Astronomer hotline&amp;quot;, hence the title. Judging by the way the helpline employee, [[Cueball]], starts the call, by asking for a description of the weird lights, it is implied that this is the main/only purpose of the helpline, or is, in practice, the subject of most of the calls they receive. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The caller is in panic, and doesn't know how to describe the light. Cueball is used to this and asks the caller to stay calm, then starts to go through his &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;check list&lt;/del&gt;, asking them if it is daytime, because if it &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;was &lt;/del&gt;he might assume they have just noticed the Sun. Most people are familiar with the Sun{{Citation needed}} and would not need help in identifying it, although people have also mistaken the Moon for a 'mysterious light in the sky' at times. Asking this could thus seem very condescending, but it is like when the employee at a tech support hot-line asks if the computer is turned on, or if the caller tried to restart the computer, see [[806: Tech Support]]. It may also refer to the most immediate danger, as looking directly at the sun is a bad idea.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The caller is in panic, and doesn't know how to describe the light. Cueball is used to this and asks the caller to stay calm, then starts to go through his &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;checklist&lt;/ins&gt;, asking them if it is daytime, because if it &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;were, &lt;/ins&gt;he might assume they have just noticed the Sun. Most people are familiar with the Sun{{Citation needed}} and would not need help in identifying it, although people have also mistaken the Moon for a 'mysterious light in the sky' at times. Asking this could thus seem very condescending, but it is like when the employee at a tech support hot-line asks if the computer is turned on, or if the caller tried to restart the computer, see [[806: Tech Support]]. It may also refer to the most immediate danger, as looking directly at the sun is a bad idea.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The caller is not affronted, but tells Cueball that the Sun has set. When asked if the lights are stationary, which stars would normally appear to be, the reply is that they are zipping around in the bushes.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The caller is not affronted, but tells Cueball that the Sun has set. When asked if the lights are stationary, which stars would normally appear to be, the reply is that they are zipping around in the bushes.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l21&quot; &gt;Line 21:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 21:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, Cueball must admit that astronomers do not know much about fireflies, since they are too fast for the astronomers' telescopes. This refers to the problem of object tracking in astronomy. Sufficient observations must be taken to reliably predict the future path of an object, and thereby to be able to reorient the observing equipment to track its progress across the sky and make further observations. While the relative velocity of fireflies would be much lower than that of most astronomical bodies, their movement across the field of view tends to ''appear'' much quicker, being unusually close to the observer. This, combined with their erratic, unpredictable paths, would make them very difficult to track through a telescope.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, Cueball must admit that astronomers do not know much about fireflies, since they are too fast for the astronomers' telescopes. This refers to the problem of object tracking in astronomy. Sufficient observations must be taken to reliably predict the future path of an object, and thereby to be able to reorient the observing equipment to track its progress across the sky and make further observations. While the relative velocity of fireflies would be much lower than that of most astronomical bodies, their movement across the field of view tends to ''appear'' much quicker, being unusually close to the observer. This, combined with their erratic, unpredictable paths, would make them very difficult to track through a telescope.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Since Cueball cannot help further, he transfers the caller to the &amp;quot;Weird Bug Hotline&amp;quot;, in a process that is apparently somewhat routine – enough to have the correct line somehow preprogrammed into his call-handling system. This is clearly not the first 'astronomy' query that actually concerns fireflies. This is similar to the process that might happen when a helpline caller's query cannot be handled by first line support and has to be passed on to a more &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;specialist &lt;/del&gt;second line operator, or where the call has been routed to the wrong &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;specialism &lt;/del&gt;to start with, perhaps because the user, lacking knowledge about the issue, selected the wrong option from an automated routing system.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Since Cueball cannot help further, he transfers the caller to the &amp;quot;Weird Bug Hotline&amp;quot;, in a process that is apparently somewhat routine – enough to have the correct line somehow preprogrammed into his call-handling system. This is clearly not the first 'astronomy' query that actually concerns fireflies. This is similar to the process that might happen when a helpline caller's query cannot be handled by first line support and has to be passed on to a more &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;specialized &lt;/ins&gt;second line operator, or where the call has been routed to the wrong &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;specialist &lt;/ins&gt;to start with, perhaps because the user, lacking knowledge about the issue, selected the wrong option from an automated routing system.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Before the call ends, at Cueball's end, he hears the opening question from the other hotline (&amp;quot;Is it currently biting you?&amp;quot;) as the new support tech again goes directly to the most common/important query, whether there is any immediate danger to be resolved... It is possible that Cueball will actually be speaking to the Weird Bugs line initially, quickly priming the Weird Bug call-handler with the salient facts already established before fully handing over the call. This could get the original caller straight into the correct conversation if the onward line's handler is sufficiently competent and experienced in such a transfer.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Before the call ends, at Cueball's end, he hears the opening question from the other hotline (&amp;quot;Is it currently biting you?&amp;quot;) as the new support tech again goes directly to the most common/important query, whether there is any immediate danger to be resolved... It is possible that Cueball will actually be speaking to the Weird Bugs line initially, quickly priming the Weird Bug call-handler with the salient facts already established before fully handing over the call. This could get the original caller straight into the correct conversation if the onward line's handler is sufficiently competent and experienced in such a transfer.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l27&quot; &gt;Line 27:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 27:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Some people (often {{w|Unidentified flying object|UFO}} enthusiasts) tend to get a little over-excited about calling every light in the sky they don't expect a UFO. This comic takes this to the extreme, where someone calls a helpline because they saw fireflies, and thought they were UFOs. While UFOs are not mentioned by name, they are heavily implied. Technically, such a person would be correct, so long as the lights are actually unidentified, flying and caused by a physical object, but if the expectation is that it is an extraterrestrial spacecraft then the truth (if discovered and also accepted) can be disappointing to some people, rather than lead to an interesting alternative avenue of appreciation of whatever phenomenon it truly is.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Some people (often {{w|Unidentified flying object|UFO}} enthusiasts) tend to get a little over-excited about calling every light in the sky they don't expect a UFO. This comic takes this to the extreme, where someone calls a helpline because they saw fireflies, and thought they were UFOs. While UFOs are not mentioned by name, they are heavily implied. Technically, such a person would be correct, so long as the lights are actually unidentified, flying and caused by a physical object, but if the expectation is that it is an extraterrestrial spacecraft then the truth (if discovered and also accepted) can be disappointing to some people, rather than lead to an interesting alternative avenue of appreciation of whatever phenomenon it truly is.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a reference to bugs that have gaps of several years between emerging from their larval state. Most famous are the {{w|Periodical cicadas}}, 13- and 17-year cicadas, that only emerge every 13 or 17 years, depending on species. The 17 years in the title text thus refers to the 17-year cicadas. Every 17 years the bug hotline hires a bunch of temporary staff, either because there will be more callers due to the unexpected new bug no one has seen for 17 years, or it could be because they just like to emulate nature and thus do this every 17 years.&amp;#160; Or alternately, the 17-year cicadas may just like to gather inside &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;of &lt;/del&gt;a trench coat and apply for jobs answering calls about weird bugs. The largest 17-year cicada appearance in the USA is called {{W|Brood X}} which last occurred in 2021 and before that 2004. [https://cicadas.uconn.edu/broods/ There are smaller broods in other years], but the majority come out with 17 years interval, and the next is expected in 2038.&amp;#160; The joke in the title text is that the employment statistics for the weird hotline have to correct for this fact.&amp;#160; Periodical cicadas have been mentioned before in [[2263: Cicadas]], see details about them in that comics [[2263:_Cicadas#Trivia|trivia section]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text is a reference to bugs that have gaps of several years between emerging from their larval state. Most famous are the {{w|Periodical cicadas}}, 13- and 17-year cicadas, that only emerge every 13 or 17 years, depending on species. The 17 years in the title text thus refers to the 17-year cicadas. Every 17 years the bug hotline hires a bunch of temporary staff, either because there will be more callers due to the unexpected new bug no one has seen for 17 years, or it could be because they just like to emulate nature and thus do this every 17 years.&amp;#160; Or alternately, the 17-year cicadas may just like to gather inside a trench coat and apply for jobs answering calls about weird bugs. The largest 17-year cicada appearance in the USA is called {{W|Brood X}} which last occurred in 2021 and before that 2004. [https://cicadas.uconn.edu/broods/ There are smaller broods in other years], but the majority come out with 17 years interval, and the next is expected in 2038.&amp;#160; The joke in the title text is that the employment statistics for the weird hotline have to correct for this fact.&amp;#160; Periodical cicadas have been mentioned before in [[2263: Cicadas]], see details about them in that comics [[2263:_Cicadas#Trivia|trivia section]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>108.162.221.163</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=287129&amp;oldid=prev</id>
		<title>GreatWyrmGold: /* Explanation */ Restructured sentences to make it sound more like one author wrote it.</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=287129&amp;oldid=prev"/>
				<updated>2022-06-17T20:07:05Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation: &lt;/span&gt; Restructured sentences to make it sound more like one author wrote it.&lt;/span&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 20:07, 17 June 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l19&quot; &gt;Line 19:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 19:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;At this point Cueball realizes that the caller has just seen {{w|fireflies}}, a family of insects commonly seen in temperate/tropical climates during the summer. He describes them for the caller as &amp;quot;lightning bugs&amp;quot; (another common epithet for these insects), &amp;quot;tree blinkers&amp;quot;, or &amp;quot;ground stars&amp;quot; (unusual terms invented for this comic that seem to illustrate the Astronomer Hotline's unfamiliarity with fireflies); and says that these are not a problem, much to the caller's relief.[https://giphy.com/gifs/bbcamerica-seven-worlds-one-planet-Q7FbMX6oJa4ycuY5Hf] Those last two descriptions, especially &amp;quot;ground stars&amp;quot;, are reminiscent of the &amp;quot;fool's stars&amp;quot; mentioned in [[2017: Stargazing 2]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;At this point Cueball realizes that the caller has just seen {{w|fireflies}}, a family of insects commonly seen in temperate/tropical climates during the summer. He describes them for the caller as &amp;quot;lightning bugs&amp;quot; (another common epithet for these insects), &amp;quot;tree blinkers&amp;quot;, or &amp;quot;ground stars&amp;quot; (unusual terms invented for this comic that seem to illustrate the Astronomer Hotline's unfamiliarity with fireflies); and says that these are not a problem, much to the caller's relief.[https://giphy.com/gifs/bbcamerica-seven-worlds-one-planet-Q7FbMX6oJa4ycuY5Hf] Those last two descriptions, especially &amp;quot;ground stars&amp;quot;, are reminiscent of the &amp;quot;fool's stars&amp;quot; mentioned in [[2017: Stargazing 2]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, Cueball must admit that astronomers do not know much about fireflies, since they are too fast for the astronomers' telescopes. This refers to the problem of object tracking in astronomy. Sufficient observations must be taken to reliably predict the future path of an object, and thereby to be able to reorient the observing equipment to track its progress across the sky and make further observations. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;In reality, &lt;/del&gt;the relative velocity of fireflies would be much lower than that of most astronomical bodies&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;. However, being usually much closer to the observer&lt;/del&gt;, their movement across the field of view tends to appear much quicker, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;and this&lt;/del&gt;, combined with their erratic, unpredictable paths, would make them very difficult to track through a telescope.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, Cueball must admit that astronomers do not know much about fireflies, since they are too fast for the astronomers' telescopes. This refers to the problem of object tracking in astronomy. Sufficient observations must be taken to reliably predict the future path of an object, and thereby to be able to reorient the observing equipment to track its progress across the sky and make further observations. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;While &lt;/ins&gt;the relative velocity of fireflies would be much lower than that of most astronomical bodies, their movement across the field of view tends to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;''&lt;/ins&gt;appear&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;'' &lt;/ins&gt;much quicker, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;being unusually close to the observer. This&lt;/ins&gt;, combined with their erratic, unpredictable paths, would make them very difficult to track through a telescope.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Since Cueball cannot help further, he transfers the caller to the &amp;quot;Weird Bug Hotline&amp;quot;, in a process that is apparently somewhat routine – enough to have the correct line somehow preprogrammed into his call-handling system. This is clearly not the first 'astronomy' query that actually concerns fireflies. This is similar to the process that might happen when a helpline caller's query cannot be handled by first line support and has to be passed on to a more specialist second line operator, or where the call has been routed to the wrong specialism to start with, perhaps because the user, lacking knowledge about the issue, selected the wrong option from an automated routing system.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Since Cueball cannot help further, he transfers the caller to the &amp;quot;Weird Bug Hotline&amp;quot;, in a process that is apparently somewhat routine – enough to have the correct line somehow preprogrammed into his call-handling system. This is clearly not the first 'astronomy' query that actually concerns fireflies. This is similar to the process that might happen when a helpline caller's query cannot be handled by first line support and has to be passed on to a more specialist second line operator, or where the call has been routed to the wrong specialism to start with, perhaps because the user, lacking knowledge about the issue, selected the wrong option from an automated routing system.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>GreatWyrmGold</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=287121&amp;oldid=prev</id>
		<title>172.70.134.103: /* Explanation */</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=287121&amp;oldid=prev"/>
				<updated>2022-06-17T14:44:42Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 14:44, 17 June 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l17&quot; &gt;Line 17:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 17:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The caller is not affronted, but tells Cueball that the Sun has set. When asked if the lights are stationary, which stars would normally appear to be, the reply is that they are zipping around in the bushes.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The caller is not affronted, but tells Cueball that the Sun has set. When asked if the lights are stationary, which stars would normally appear to be, the reply is that they are zipping around in the bushes.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;At this point Cueball realizes that the caller has just seen {{w|fireflies}}, a family of insects commonly seen in temperate/tropical climates during the summer. He describes them for the caller as &amp;quot;lightning bugs&amp;quot; (another common epithet for these insects), tree blinkers, or ground stars (unusual terms invented for this comic that seem to illustrate the Astronomer Hotline's unfamiliarity with fireflies); and says that these are not a problem, much to the caller's relief.[https://giphy.com/gifs/bbcamerica-seven-worlds-one-planet-Q7FbMX6oJa4ycuY5Hf] Those last two descriptions, especially &amp;quot;ground stars&amp;quot;, are reminiscent of the &amp;quot;fool's stars&amp;quot; mentioned in [[2017: Stargazing 2]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;At this point Cueball realizes that the caller has just seen {{w|fireflies}}, a family of insects commonly seen in temperate/tropical climates during the summer. He describes them for the caller as &amp;quot;lightning bugs&amp;quot; (another common epithet for these insects), &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;&lt;/ins&gt;tree blinkers&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;&lt;/ins&gt;, or &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;&lt;/ins&gt;ground stars&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot; &lt;/ins&gt;(unusual terms invented for this comic that seem to illustrate the Astronomer Hotline's unfamiliarity with fireflies); and says that these are not a problem, much to the caller's relief.[https://giphy.com/gifs/bbcamerica-seven-worlds-one-planet-Q7FbMX6oJa4ycuY5Hf] Those last two descriptions, especially &amp;quot;ground stars&amp;quot;, are reminiscent of the &amp;quot;fool's stars&amp;quot; mentioned in [[2017: Stargazing 2]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, Cueball must admit that astronomers do not know much about fireflies, since they are too fast for the astronomers' telescopes. This refers to the problem of object tracking in astronomy. Sufficient observations must be taken to reliably predict the future path of an object, and thereby to be able to reorient the observing equipment to track its progress across the sky and make further observations. In reality, the relative velocity of fireflies would be much lower than that of most astronomical bodies. However, being usually much closer to the observer, their movement across the field of view tends to appear much quicker, and this, combined with their erratic, unpredictable paths, would make them very difficult to track through a telescope.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, Cueball must admit that astronomers do not know much about fireflies, since they are too fast for the astronomers' telescopes. This refers to the problem of object tracking in astronomy. Sufficient observations must be taken to reliably predict the future path of an object, and thereby to be able to reorient the observing equipment to track its progress across the sky and make further observations. In reality, the relative velocity of fireflies would be much lower than that of most astronomical bodies. However, being usually much closer to the observer, their movement across the field of view tends to appear much quicker, and this, combined with their erratic, unpredictable paths, would make them very difficult to track through a telescope.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.70.134.103</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=287120&amp;oldid=prev</id>
		<title>172.70.134.103: /* Explanation */</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=287120&amp;oldid=prev"/>
				<updated>2022-06-17T14:44:08Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 14:44, 17 June 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l17&quot; &gt;Line 17:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 17:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The caller is not affronted, but tells Cueball that the Sun has set. When asked if the lights are stationary, which stars would normally appear to be, the reply is that they are zipping around in the bushes.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The caller is not affronted, but tells Cueball that the Sun has set. When asked if the lights are stationary, which stars would normally appear to be, the reply is that they are zipping around in the bushes.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;At this point Cueball realizes that the caller has just seen {{w|&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Fireflies&lt;/del&gt;}}. He describes them for the caller as lightning bugs, tree blinkers or ground stars&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;tells the caller &lt;/del&gt;that these are not a problem, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;so &lt;/del&gt;the caller &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;is now relieved&lt;/del&gt;.[https://giphy.com/gifs/bbcamerica-seven-worlds-one-planet-Q7FbMX6oJa4ycuY5Hf] Those descriptions are reminiscent of the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;fools &lt;/del&gt;stars &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;(and planes) &lt;/del&gt;mentioned in [[2017: Stargazing 2]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;At this point Cueball realizes that the caller has just seen {{w|&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;fireflies&lt;/ins&gt;}}&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, a family of insects commonly seen in temperate/tropical climates during the summer&lt;/ins&gt;. He describes them for the caller as &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;&lt;/ins&gt;lightning bugs&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot; (another common epithet for these insects)&lt;/ins&gt;, tree blinkers&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, &lt;/ins&gt;or ground stars &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(unusual terms invented for this comic that seem to illustrate the Astronomer Hotline's unfamiliarity with fireflies); &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;says &lt;/ins&gt;that these are not a problem, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;much to &lt;/ins&gt;the caller&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;'s relief&lt;/ins&gt;.[https://giphy.com/gifs/bbcamerica-seven-worlds-one-planet-Q7FbMX6oJa4ycuY5Hf] Those &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;last two &lt;/ins&gt;descriptions&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, especially &amp;quot;ground stars&amp;quot;, &lt;/ins&gt;are reminiscent of the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;fool's &lt;/ins&gt;stars&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot; &lt;/ins&gt;mentioned in [[2017: Stargazing 2]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, Cueball must admit that astronomers do not know much about fireflies, since they are too fast for the astronomers' telescopes. This refers to the problem of object tracking in astronomy. Sufficient observations must be taken to reliably predict the future path of an object, and thereby to be able to reorient the observing equipment to track its progress across the sky and make further observations. In reality, the relative velocity of fireflies would be much lower than that of most astronomical bodies. However, being usually much closer to the observer, their movement across the field of view tends to appear much quicker, and this, combined with their erratic, unpredictable paths, would make them very difficult to track through a telescope.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;However, Cueball must admit that astronomers do not know much about fireflies, since they are too fast for the astronomers' telescopes. This refers to the problem of object tracking in astronomy. Sufficient observations must be taken to reliably predict the future path of an object, and thereby to be able to reorient the observing equipment to track its progress across the sky and make further observations. In reality, the relative velocity of fireflies would be much lower than that of most astronomical bodies. However, being usually much closer to the observer, their movement across the field of view tends to appear much quicker, and this, combined with their erratic, unpredictable paths, would make them very difficult to track through a telescope.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.70.134.103</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=287112&amp;oldid=prev</id>
		<title>162.158.159.43: /* Explanation */</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2633:_Astronomer_Hotline&amp;diff=287112&amp;oldid=prev"/>
				<updated>2022-06-17T09:27:15Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 09:27, 17 June 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l11&quot; &gt;Line 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 11:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This comic is a joke about {{w|Helpline|helplines}}, and the experience of the skilled people staffing them, who often have to deal with callers with a much lower understanding of the subject, seeking assistance with things that may seem very basic from the point of view of the technician, or where they have completely misunderstood the nature of the issue.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This comic is a joke about {{w|Helpline|helplines}}, and the experience of the skilled people staffing them, who often have to deal with callers with a much lower understanding of the subject, seeking assistance with things that may seem very basic from the point of view of the technician, or where they have completely misunderstood the nature of the issue.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The comic starts with someone having called the &amp;quot;Astronomer hotline&amp;quot;, hence the title. Judging by the way the helpline employee, [[Cueball]], starts the call, by asking for a description of the weird lights, it is implied that this is the main/only purpose of the helpline, or is, in practice, the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;only type &lt;/del&gt;of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;call &lt;/del&gt;they receive. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The comic starts with someone having called the &amp;quot;Astronomer hotline&amp;quot;, hence the title. Judging by the way the helpline employee, [[Cueball]], starts the call, by asking for a description of the weird lights, it is implied that this is the main/only purpose of the helpline, or is, in practice, the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;subject &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;most of the calls &lt;/ins&gt;they receive. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The caller is in panic, and doesn't know how to describe the light. Cueball is used to this and asks the caller to stay calm, then starts to go through his check list, asking them if it is daytime, because if it was he might assume they have just noticed the Sun. Most people are familiar with the Sun{{Citation needed}} and would not need help in identifying it, although people have also mistaken the Moon for a 'mysterious light in the sky' at times. Asking this could thus seem very condescending, but it is like when the employee at a tech support hot-line asks if the computer is turned on, or if the caller tried to restart the computer, see [[806: Tech Support]]. It may also refer to the most immediate danger, as looking directly at the sun is a bad idea.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The caller is in panic, and doesn't know how to describe the light. Cueball is used to this and asks the caller to stay calm, then starts to go through his check list, asking them if it is daytime, because if it was he might assume they have just noticed the Sun. Most people are familiar with the Sun{{Citation needed}} and would not need help in identifying it, although people have also mistaken the Moon for a 'mysterious light in the sky' at times. Asking this could thus seem very condescending, but it is like when the employee at a tech support hot-line asks if the computer is turned on, or if the caller tried to restart the computer, see [[806: Tech Support]]. It may also refer to the most immediate danger, as looking directly at the sun is a bad idea.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>162.158.159.43</name></author>	</entry>

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