Talk:Deimos (moon)

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[edit] Ice?

So, what kind ice does Deimos have, with a surface temperature of "~313 K" (a very hot summer day where I live)? Gene Nygaard 19:45, 5 Jan 2005 (UTC)

The ice mentioned is inside Deimos. Because of its low albedo (0.07), a steadily illuminated Deimos surface would reach equilibrium at ~313 K. With rotation and shadowing, one would expect the average temperature to be somewhat lower. The interior could contain a lot of ice, protected by the insulating dark crust. Just a guess. Do we have any actual surface temperature measurements quoted anywhere?

Urhixidur 03:45, 2005 Jan 6 (UTC)

[edit] pronunciation

The article had DAY-mus. This is an attempt at the classical Greek pronunciation; the English equivalent is DYE-mus or perhaps DEE-mus. Most refs, including Geyley's 1893 (1911, 1939) Classic Myths in English Literature and in Art and Zimmerman's 1964 Dictionary of Classical Mythology have the former; a few, such as Tripp's Meridian Handbook of Classical Mythology have the latter.

The Greek is the same as in dinosaur (just substitute N for M), if that helps you decide on a pronunciation. (Deinothere has the same vowel spelling in English as Deimos as well; it's also pronounced DYE-.) —kwami 07:44, 7 Apr 2005 (UTC)

Added the Greek spelling, which will provide the DAY-mus pronunciation to anyone who wants to be 'authentic'. --kwami 01:11, 11 Apr 2005 (UTC)

Anyone know of an adjectival form? I can't find anything. I assume something like Deimian would be acceptable, but don't know if anything else is in use. kwami 2005 June 30 06:22 (UTC)

[edit] Orbital evolution

Anybody know of good info on the orbital evolution of Deimos? Since it's higher than synchronous orbit, it is moving outward, and I believe it will eventually escape; but I haven't found any good refs for the time scale required. --Reuben 21:05, 4 April 2007 (UTC)