Talk:Jupiter

Template:WP1.0

Interior update

There is a ton of new information out there on Jupiter's interior based on recent simulations.[1] [anon.]

The sun having a mass of about 1050

Jupiters is context that readers would appreciate and I think it should be in the article.Instead of being bold, I'm suggesting it here in deference to article's protection status.Rich (talk) 02:44, 10 May 2009 (UTC)

The mass ratio is mentioned on Jupiter mass, but I think it would be of value to mention this in the Mass section. It would provide some perspective (even though the end of the Mass section already does this to some degree).—RJH (talk) 21:11, 11 May 2009 (UTC)

Sun/Jupiter barycenter

Not sure what citation would be needed for the claim about the location of the Sun/Jupiter barycenter. It's just a matter of knowing the formulas, the equations, as shown in this section of the "Center of mass" article. See the examples in the table. On the far right at the bottom is the r₁/R₁ value - 1.07. So the barycenter is outside the surface of the Sun by 1.07 times its radius. That .07 figure above the radius represents the 7% used in this article. Here's a source for the equations needed, but the actual Sun/Jupiter mass ratio is not used there. What precisely does editor RJHall require?  ^{.`</sup>^) Paine<sup>diss`cuss} (^^`.  02:37, 19 May 2009 (UTC)

• PS. It might also be interesting to note that since Jupiter follows an elliptical track around the Sun, the position of the barycenter is sometimes closer to and sometimes farther away from the Sun. Here's a quote from the CofM article...

The calculations above are based on the mean distance between the bodies and yield the mean value r₁. But all celestial orbits are elliptical, and the distance between the bodies varies between the apses, depending on the eccentricity, e. Hence, the position of the barycenter varies too, and it is possible in some systems for the barycenter to be sometimes inside and sometimes outside the more massive body. This occurs where:

${1 \over {1-e}}>{r_{1} \over R_{1}}>{1 \over {1+e}}$

Note that the Sun-Jupiter system, with e_Jupiter = 0.0484, just fails to qualify: 1.05 ≯ 1.07 > 0.954.

I would appreciate it if you could provide a source that satisfies the policy at Wikipedia:Citing sources, so as to avoid claims of WP:NOR. Per the latter, a routine calculation is allowed, as long as a source is provided for the calculation. Usually what I do in that case is add a note showing the derivation (based on already cited values) and listing a source for the formula. But I think it would be preferable to have an authoritative source that shows the final result. Thank you.—RJH (talk) 17:13, 19 May 2009 (UTC)

Yes, I would also like a source that shows the final result. I looked for over an hour last night and was unable to locate one. Are we on the right track in accepting the idea you have about using the math source I found coupled with an added note showing the derivation? If so, then I must ask you to incorporate the information into the article, because I have no expertise in this. I would like to learn how it's done, though.  ^{.`</sup>^) Paine<sup>diss`cuss} (^^`.  03:18, 20 May 2009 (UTC)

Okay, now I'm a bit confused. Did I miss something? In the new reference you found, section 3.4 as cited states only that, "It is a curious coincidence that the barycenter of the Sun-Jupiter system lies almost exactly at the solar surface, . . ." I am unable to find anything there that's more precise. What have I missed?  ^{.`</sup>^) Paine<sup>diss`cuss} (^^`.  04:43, 21 May 2009 (UTC)

It gives a diameter of 1.5 million km for the orbit of the Sun around the barycenter with Jupiter, which is 7% more than the 1.4 million km diameter of the Sun.—RJH (talk) 16:46, 21 May 2009 (UTC)

Ah, thank you! If you're happy, RJ, then I'm happy.  ^{.`</sup>^) Paine<sup>diss`cuss} (^^`.  19:35, 22 May 2009 (UTC)

Thanks. I was hoping for a more consise reference, but that at least confirms the info.—RJH (talk) 17:24, 23 May 2009 (UTC)

Is there a grammar problem

in:"It is a gas giant with mass slightly less than one thousandth that of the Sun and two and a half times more massive than all of the other planets in our Solar System combined." ?It sounds funny.75.45.106.99 (talk) 01:04, 11 June 2009 (UTC)

Jupiter

i need info —Preceding unsigned comment added by 220.239.250.47 (talk) 07:26, 16 June 2009 (UTC)

That's kinda what the page is for. Serendi^podous 11:19, 22 June 2009 (UTC)

In fiction

The category Jupiter in fiction includes 62 articles. All that stuff should merit some mentioning in this article. It seems an arbitrary choice to include a good section on religion and nothing about fiction. --Ettrig (talk) 07:27, 11 July 2009 (UTC)

Jupiter's impact on culture goes so far beyond mere fiction that to merely mention fiction is to trivialise the issue. What about religion, history, poetry, philosophy, astrology? Serendi^podous 07:36, 11 July 2009 (UTC)

That is one person's view, yours. Who are we to disregard all those who wrote those 62 articles. --Ettrig (talk) 08:34, 11 July 2009 (UTC)

They are no longer being disregarded, Ettrig. The cat has been added to the article for those readers who are interested in planet Jupiter's utilization in fiction. The article is getting a bit long, and this also must be considered when contemplating additions. Also, I have checked, and there are no existing cats nor articles yet for the other specific possibilities mentioned by Serendipodous. If interested, this may be an avenue to pursue?  ^{.`</sup>^) Paine Ellsworth<sup>diss`cuss} (^^`.  08:45, 11 July 2009 (UTC)

The article Jupiter in fiction covers the topic, but is badly undercited. It could be mentioned here using WP:SS, but I would urge that the main article on the topic be brought up to wikipedia standards first. Unsourced material can be challenged and removed. In this case, the material is so poorly cited that it may be removed mercilessly from this FA article in order to keep it up to the Wikipedia:Featured article criteria standard.—RJH (talk) 18:49, 12 July 2009 (UTC)

Possible impact

There may have just been an asteroid or comet impact similar to the Shoemaker-Levy impacts. JCDenton2052 (talk) 05:06, 20 July 2009 (UTC)

Perhaps. But this article doesn't mention it yet, so it doesn't document a current event. Might need its own article over on Google News; will need more documentation before it comes here. Serendi^podous 06:40, 20 July 2009 (UTC)

I've added mention of the impact to the Jupiter main page now, as there are pictures of the impact site and corroboration by JPL. Violentbob (talk) 14:39, 20 July 2009 (UTC)

JPL confirms: http://www.jpl.nasa.gov/news/news.cfm?release=2009-112 Add info to the article. 63.245.144.68 (talk) 05:32, 21 July 2009 (UTC)