Talk:Callisto (moon)

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Contents

[edit] Nature of Carbon Dioxide Atmosphere

Does anyone know the nature of the carbon dioxie atmosphere? I've always thought that it was unusual for the atmosphere to be composed of carbon dioxide. I've searched all through the internet and I haven't found an answer, so if anyone here knows anything about that it would be cool if you put it in the article.

For more info, see:

  • Carlson, R. W., A tenuous carbon dioxide atmosphere on Jupiter’s moon Callisto, Science 283, 820, 1999.
  • Liang, M.-C., B. F. Lane, R. T. Pappalardo, M. Allen, and Y. L. Yung, Atmosphere of Callisto, J. Geophys. Res. 110, E02003, doi:10.1029/2004JE002322, 2005.

[edit] adjectival form

Anybody know the adjectival form of Callisto? The Greek accusative/oblique doesn't have any additional consonants, which is how we get Ionian from Io, for example. The only technical paper I've seen had Callistoan, but Callistonian (by analogy) and Callistan might also be possibilities. Any thoughts? kwami 21:31, 2005 May 27 (UTC)

The Classics reference librarian at the UCSD library couldn't find anything, but suggested Callistoan kal'-is-toe'-un, thus tentatively confirming the single instance I could find in the tech literature, as well as giving it a pronunciation. kwami 00:18, 2005 May 28 (UTC)
Found other astr. papers that use "Callistoan". E.g., age measures of Ganymedean and Callistoan surfaces. kwami 23:56, 2005 July 21 (UTC)

[edit] The name

Any documentation for the analysis of Galileo's motives?

...it is simply referred to by its Roman numeral designation (a system used by Galileo to snub Marius)

Maybe he used the numerals because he had used them in 1610 when he determined their orbital periods, four years before Simon Mayr (Marius) showed up with a claim to discovery. A 'snub" (though entirely justified by the facts of the case) is not supported by documentation. --Dandrake 00:31, Jun 24, 2005 (UTC)

[edit] Liquid Ocean

Does anyone know the source for the liquid ocean claim? One of my astro books says "Callisto is undifferentiated and hence apparently never melted". That doesn't directly contradict the liquid ocean claim but it makes me very dubious. It also shows a diagram of Callisto having a rock/ice mixture.

The induced magnetic field, which implies a conductor within:

Kivelson, M. G., K. K. Khurana, D. J. Stevenson, L. Bennett, S. Joy, C. T. Russell, R. J. Walker, C. Zimmer, and C. Polanskey, Europa and Callisto: Induced or intrinsic fields in a periodically varying plasma environment, J. Geophys. Res., 104, 4609–4626, 1999.

Reconciling an ocean and an only partially differentiated interior is certainly an unresolved problem!

[edit] strange wording?

"It is the third-largest moon in the solar system, about 99% the size of the planet Mercury but much less massive."

to me, this sounds a bit.. off.. I would fix it, but I'm not sure about what is implied by "massive". is it weight/mass or to size (I'm assuming the former, but I'm not sure which)--DiogenesTheHobo 03:58, 15 March 2007 (UTC)

The quote is correct. By massive, we're referring to mass, as opposed to the size, which is how far across it is. Mercury is very dense, with a large metal core, while Callisto is composed of rock and ice. --Patteroast 21:34, 15 March 2007 (UTC)

[edit] References

I added necessary references and also made some corrections. I think the article does cite sources accuratly. I think it would be helpful if someone (preferably a native english speaker) reviewed it now. Ruslik 13:07, 18 April 2007 (UTC)


[edit] Peer review

I have requested peer review of this article. Please, participate. Ruslik 13:53, 19 July 2007 (UTC)

[edit] Copyediting

OK, I'm having a go at kneading the text a bit but a few words I'm not sure about:

  • unhomogeneous? why not heterogeneous.
Agree, Ruslik 09:38, 19 September 2007 (UTC)
  • make a definition for embay on wiktionary and link to there, rather than an explanation here
Agree, I wasn't the person who added it. Ruslik 09:38, 19 September 2007 (UTC)
  • dynamical should be dynamic shouldn't it?
Not sure here, it actually intends to mean that from the point of view of dynamics, Callisto is isolated. Ruslik 09:38, 19 September 2007 (UTC)
  • palimpsests -please define or link
palimpsest is defined as a large circular or elliptic bright feature. The are probably unresolved impacts structures.Ruslik 09:38, 19 September 2007 (UTC)

More to come. cheers, Casliber (talk · contribs) 09:19, 19 September 2007 (UTC)

[edit] Inner satellite - Mistake ?

Hello,

the article is stating Like most other inner planetary moons, Callisto's rotation is locked to be synchronous with its orbit. But the article Inner_satellite#Inner_satellites_of_Jupiter doesn't include this moon as an inner satellite of Jupiter. Poppy 18:44, 4 November 2007 (UTC)

To avoid confusion I changed 'inner' to 'regular'. Ruslik 19:11, 4 November 2007 (UTC)