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Dione 'Rev 158' Raw Preview #2
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![]() Alliance Member Comments
carolyn (CICLOPS) (Jan 9, 2012 at 8:47 AM):
NeKto: Titan's atmosphere is about 200 hundreds kilometers deep and *I think* that includes the upper (bluish) haze layers but am not sure.
NeKto (Jan 9, 2012 at 8:08 AM):
There certainly is a lot of "air" around that ice ball! the only atmosphere in our solar system that comes to mind for comparable depth and presure is Venus. very deep, a lot more presure, but a lot more gravity as well. To say nothing of way more heat.
1.5 atmospheres with Titan's gravity is one heck of a lot of gas. the "visible" atmosphere above the orange cloud deck is very deep to the unaided eye. are we talking hundreds of kilometers from detectable atmosphere to surface? carolyn (CICLOPS) (Jan 8, 2012 at 2:06 PM):
Welcome jaygee and all other new Alliance members! Hope you enjoy yourselves here. And to Nekto: The ratio of the depth of Titan's atmosphere to its radius is indeed large, because its gravity is weak compared to that of a larger body, like Earth's. Remember its surface pressure is about 50% greater than that of Earth's, which mean its atmosphere is substantial!
jaygee (Jan 8, 2012 at 3:18 AM):
Just Become a member, so I'm Strapped in my seat & I'm Ready to Join other members for this Out of this World Journey, Hi Everybody....
Robert (Dec 31, 2011 at 9:31 PM):
I too feel like I'm there. And in a sense we are through Cassini which was only about 93,000 km from Dione at the time (less than 1/4 of the distance between the Earth and our Moon). By the way, the moon emerging from behind is Mimas (over 610,000 km away from Cassini). In raw image #3, Mimas is just going behind Dione. South is up.
NeKto (Dec 13, 2011 at 8:54 AM):
kennyfrew; one of the things i find most amazing is what we see here is mostly water ice. not lava flow, ice and snow. it is mostly floe.
kennyfrew (Dec 12, 2011 at 8:18 PM):
Wow! Are those lava flows? I feel like i'm there-Amazing.
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