Umbriel Vs. Iapetus |
Unmanned Spaceflight.com > Outer Solar System > Saturn > Cassini Huygens > Cassini's ongoing mission and raw images  |
Umbriel Vs. Iapetus |
 Mar 20 2005, 09:45 PM
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 Interplanetary Dumpster Diver  Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33  |
It seems to me that there is a similarity between these two moons. Have any spectral comparisons been done? Granted, the imaged portion of Umbriel only has a few bright streaks, but it has a similar visible effect. Bright areas on Umbriel seem to only be dug up by craters. Is it possible that this is a moon that got a thicker coat of the stuff that is on one side of Iapetus?
I have added a page on Umbriel to my site with some commentary and a montage of the five best Voyager image sets of this moon. Perhaps New Horizons 2, if it flies can tell us more...the Voyager coverage is quite poor. http://pages.preferred.com/%7Etedstryk/umbriel.html 
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Mar 20 2005, 10:37 PM
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 Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
or Umbriel and Iapetus have undergone similar processes of water ice removal.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Mar 20 2005, 10:47 PM
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
That is a good question. Does anyone know anything with regards to similarities in surface composition? I figure we must have at least some groundbased data for Umbriel.
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