Talk:3219: Planets and Bright Stars - Revision history

42.book.addict at 17:25, 18 March 2026

2026-03-18T17:25:27Z

82.13.184.33 at 09:30, 18 March 2026

2026-03-18T09:30:27Z

82.13.184.33 at 09:21, 18 March 2026

2026-03-18T09:21:38Z

2600:387:15:5916:0:0:0:4 at 01:13, 17 March 2026

2026-03-17T01:13:23Z

Alcatraz ii: Signing previous comment

2026-03-16T23:59:36Z

Signing previous comment

Alcatraz ii: Bookmarked

2026-03-16T23:59:05Z

Bookmarked

JohnHawkinson: /* Proper motion */ r/once more unto the depths, my friends, once more!

2026-03-16T19:24:34Z

‎Proper motion: r/once more unto the depths, my friends, once more!

81.179.199.253 at 18:50, 16 March 2026

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81.179.199.253 at 18:46, 16 March 2026

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82.132.238.193 at 17:19, 16 March 2026

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 :And there's all kinds of weirdness in the scripting part of the page, like the bit that says <code><nowiki>node.outerHTML="\u003Cdiv id=\"localNotice\" lang=\"en\" dir=\"ltr\"\u003E\u003Cdiv[... most of this statement removed ...]\n\u003C/div\u003E\u003C/div\u003E";</nowiki></code> with ''escaped'' DIVs in it, that only apply when the script self-modifies the page-source. [[Special:Contributions/81.179.199.253|81.179.199.253]] 21:59, 13 March 2026 (UTC)
 ::In fact, the rogue DIV only appears when viewing the transcluded Talk page within the main article. Viewing the Talk page directly doesn't seem to show it (or have it in the same bit of the respective HTML source), which adds to my belief that it's a run-on tag (not?) being opened as part of the Comic page's definition. [[Special:Contributions/81.179.199.253|81.179.199.253]] 22:02, 13 March 2026 (UTC)
 Jupiter, Venus, Mars (at its peak) and Sirius are noticeably brighter than the others. Mars, Antares and Betelgeuse are also quite red. Also if you look at planets  through a telescope or good binoculars you can tell that they have a larger size (and some have moons). The others would be quite hard to tell apart without knowing their position.

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 The extremely high parallax of the Sun (324,000 arc seconds if I calculate correctly) swamps out any prer motion. [[Special:Contributions/2600:1001:B008:1230:9C83:B115:90B1:6038|2600:1001:B008:1230:9C83:B115:90B1:6038]] 12:12, 14 March 2026 (UTC)
+:Proper motion is change in (apparent) angular position on the sky. (Parallax is usually associated with distance) So the suns is about 360 x 3600 x 365.25 = 473,364,000 arc sec/year. But you must be careful since the moon has a similar proper motion so your measurements must be accurate to about ~4% to tell them apart.[[User:Lordpishky|Lord Pishky]] ([[User talk:Lordpishky|talk]]) 22:46, 14 March 2026 (UTC)
 :Err…''wutt?'' Again, I am not a domain expert or even really a domain user, but…<br>
 :(a) A single object cannot have a "parallax." Parallax is a measure of error between two viewpoints (line segments), or perhaps between three points in space (the far object and two eye positions). Assuming the Sun is the far object, what are the other reference points or lines? If one is the Earth (a pretty big ''if''&thinsp;) then what is the other?<br>

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 [https://ibb.co/k6wQF0Vd Chart fixed by explanations here] {{unsigned|2A09:BAC3:2FF0:28C:0:0:41:127}}
 :Since Rumbling7145 did the same higher up in the discussion I used his picture in stead, but still great work. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 12:52, 15 March 2026 (UTC)
 Do planets and stars both have the same "flickering" appearance? If they don't, that would aid in identification. [[User:These Are Not The Comments You Are Looking For|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For|talk]]) 05:37, 15 March 2026 (UTC)
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 :The larger the dot is, the less noticable the twinkling (hence the Moon not necessarily shimmering... though, like the Sun, it can if you're looking through air with enough density gradient or other resulting density-driven turbulance), but the difference is pretty much like being shown pin-points and/or pin-''heads'', an otherwise unknown combination being arranged to respectively face you, at the other end of quite a large room. [[Special:Contributions/82.132.236.94|82.132.236.94]] 16:27, 15 March 2026 (UTC)
 ::Even though neither is resolvable as a disc by the unaided human eye, the large difference in angular size between stars and planets means that stars typically twinkle while planets typically don't.  See [https://en.wikipedia.org/wiki/Twinkling the Wikipedia page on Twinkling] for references. [[Special:Contributions/2600:1001:B008:1230:F993:3035:42C1:BC65|2600:1001:B008:1230:F993:3035:42C1:BC65]] 21:08, 15 March 2026 (UTC)
 ;Proper motion
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 :Maybe I'm misunderstanding though? [[User:JohnHawkinson|JohnHawkinson]] ([[User talk:JohnHawkinson|talk]]) 13:20, 14 March 2026 (UTC)
 ::Using usual definitions of stellar parallax, half the shift in angular position of the star when viewed from opposite "ends" of Earth's orbit.  From, say December to June the Sun's position relative to the background stars shifts by 180 degrees. It's a bit of a joke, but this _is_ a comic we are discussing. [[Special:Contributions/2600:1001:B008:1230:9C83:B115:90B1:6038|2600:1001:B008:1230:9C83:B115:90B1:6038]] 15:12, 14 March 2026 (UTC)
 @81.179.199.253, I do not think that writing «a simple "angle per time"» is more clear than «degrees/second» or «rad/sec.». Just like saying "linear distance" is more confusing to people than "feet" (or meters). One might even suggest if we have to label something "simple" that is evidence that it isn't. I think, also, the grammar of the sentence got even more complex. [[User:JohnHawkinson|JohnHawkinson]] ([[User talk:JohnHawkinson|talk]]) 20:09, 14 March 2026 (UTC)
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 :::::::: @'''DollarStoreBa'al''' Please cease your "as you have repeatedly been told" holier-than-thou nonsense. I am well aware that this MediaWiki does not provide notification to editors when they are mentioned in a reply, but so what? It is still useful as a form of address, and I so chose it here. So it did indeed "work" (not that it has to). Your comment is unhelpful and makes me feel antagonized. (And even if pings worked at the MediaWiki layer, their situation for IP editors would be problematic because apparently the IPs are not stable or real as seen by MediaWiki in our configuration). [[User:JohnHawkinson|JohnHawkinson]] ([[User talk:JohnHawkinson|talk]]) 19:24, 16 March 2026 (UTC)
 :::::::Also, as a note, the "minor edit" checkbox isn't even available to IP editors. (Don't worry about the Ping thing, though, which is effectively just a visual marker. I read it anyway, 'cos I read everything, even if I decided against any replying about this at the time.) [[Special:Contributions/82.132.238.193|82.132.238.193]] 17:19, 16 March 2026 (UTC)

← Older revision		Revision as of 01:13, 17 March 2026
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	Bookmarking this one. So far I've identified 12 Mars and 15 Venuses! [[User:Alcatraz ii\|Alcatraz ii]] ([[User talk:Alcatraz ii\|talk]]) 23:59, 16 March 2026 (UTC)		Bookmarking this one. So far I've identified 12 Mars and 15 Venuses! [[User:Alcatraz ii\|Alcatraz ii]] ([[User talk:Alcatraz ii\|talk]]) 23:59, 16 March 2026 (UTC)
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		+	I was hoping that Sirius would twinkle like when I see it out my window. [[Special:Contributions/2600:387:15:5916:0:0:0:4\|2600:387:15:5916:0:0:0:4]] 01:13, 17 March 2026 (UTC)

← Older revision		Revision as of 23:59, 16 March 2026
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−	Bookmarking this one. So far I've identified 12 Mars and 15 Venuses!	+	Bookmarking this one. So far I've identified 12 Mars and 15 Venuses! [[User:Alcatraz ii\|Alcatraz ii]] ([[User talk:Alcatraz ii\|talk]]) 23:59, 16 March 2026 (UTC)

← Older revision		Revision as of 23:59, 16 March 2026
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	:The "Transcript" section ''should not'' use tables (even for an actual comic of a table, being transcribed, tempting as that may be). It is supposed to be a text-only representation of the visuals, so relying upon things like formats and layout (except by describing said format and layout in words) doesn't help do what the Transcipt part is supposed to do.		:The "Transcript" section ''should not'' use tables (even for an actual comic of a table, being transcribed, tempting as that may be). It is supposed to be a text-only representation of the visuals, so relying upon things like formats and layout (except by describing said format and layout in words) doesn't help do what the Transcipt part is supposed to do.
	:Though you can create a table (formatted however you like) within the "Explanation". But it'd be better not as a 4x3-stle table to replicate the comic layout, instead as a row per each of the twelve and columns to contain various (sortable?) details relating to each line. [[Special:Contributions/81.179.199.253\|81.179.199.253]] 18:46, 16 March 2026 (UTC)		:Though you can create a table (formatted however you like) within the "Explanation". But it'd be better not as a 4x3-stle table to replicate the comic layout, instead as a row per each of the twelve and columns to contain various (sortable?) details relating to each line. [[Special:Contributions/81.179.199.253\|81.179.199.253]] 18:46, 16 March 2026 (UTC)
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		+	Bookmarking this one. So far I've identified 12 Mars and 15 Venuses!

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 ::::::@'''82.132.236.94''', I would not. It seems to me that the only debate on that is whether or not you should punch the "This is a minor edit" checkbox when you make the edit. [[User:JohnHawkinson|JohnHawkinson]] ([[User talk:JohnHawkinson|talk]]) 20:16, 15 March 2026 (UTC)
 :::::::Pings do not work on this wiki, as you have repeatedly been told. --'''''[[User:DollarStoreBa'al|<span style="color:#023020">DollarStoreBa'al</span>]]<sup>[[User Talk:DollarStoreBa'al|<span style="color:#09ff00">Converse</span>]]</sup>  13:06, 16 March 2026 (UTC)
 :::::::Also, as a note, the "minor edit" checkbox isn't even available to IP editors. (Don't worry about the Ping thing, though, which is effectively just a visual marker. I read it anyway, 'cos I read everything, even if I decided against any replying about this at the time.) [[Special:Contributions/82.132.238.193|82.132.238.193]] 17:19, 16 March 2026 (UTC)
 This is redundant: "The joke is that they are all nearly identical dots, making the chart almost useless. [...] The joke is that the pictures look almost identical to one another, and therefore the chart isn't helpful at all." But I don't know which of the two sentences to delete, so I'm just going to leave this note here, and let someone else tighten the explanation. [[Special:Contributions/2603:7000:6100:48CF:1D2B:3433:E765:8B8C|2603:7000:6100:48CF:1D2B:3433:E765:8B8C]] 02:37, 15 March 2026 (UTC)

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 The picture could be "transcribed" more accurately as a 4x3 table, but I don't know if the detrimental effect on mobile viewing would outweigh that. [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 02:36, 16 March 2026 (UTC)
-:The "Transcript" section ''should not'' use tables (even for an actual comic of a table, being transcribed, tempting as that may be).
+:The "Transcript" section ''should not'' use tables (even for an actual comic of a table, being transcribed, tempting as that may be). It is supposed to be a text-only representation of the visuals, so relying upon things like formats and layout (except by describing said format and layout in words) doesn't help do what the Transcipt part is supposed to do.
-:Though you can create a table within the "Explanation". But it'd be better not as a 4x3-stle table to replicate the comic layout, instead as a row per each of the twelve and columns to contain various (sortable?) details relating to each line. [[Special:Contributions/81.179.199.253|81.179.199.253]] 18:46, 16 March 2026 (UTC)
+:Though you can create a table (formatted however you like) within the "Explanation". But it'd be better not as a 4x3-stle table to replicate the comic layout, instead as a row per each of the twelve and columns to contain various (sortable?) details relating to each line. [[Special:Contributions/81.179.199.253|81.179.199.253]] 18:46, 16 March 2026 (UTC)

← Older revision		Revision as of 18:46, 16 March 2026
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	The picture could be "transcribed" more accurately as a 4x3 table, but I don't know if the detrimental effect on mobile viewing would outweigh that. [[User:BunsenH\|BunsenH]] ([[User talk:BunsenH\|talk]]) 02:36, 16 March 2026 (UTC)		The picture could be "transcribed" more accurately as a 4x3 table, but I don't know if the detrimental effect on mobile viewing would outweigh that. [[User:BunsenH\|BunsenH]] ([[User talk:BunsenH\|talk]]) 02:36, 16 March 2026 (UTC)
		+	:The "Transcript" section ''should not'' use tables (even for an actual comic of a table, being transcribed, tempting as that may be).
		+	:Though you can create a table within the "Explanation". But it'd be better not as a 4x3-stle table to replicate the comic layout, instead as a row per each of the twelve and columns to contain various (sortable?) details relating to each line. [[Special:Contributions/81.179.199.253\|81.179.199.253]] 18:46, 16 March 2026 (UTC)