Dawn's Survey Orbit at Ceres |
Dawn's Survey Orbit at Ceres |
Jun 15 2015, 05:47 PM
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#1
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
daily Ceres picture from the survey orbit
http://dawn.jpl.nasa.gov/multimedia/images...tml?id=PIA19572 I started a new topic, as we are no longer in the first orbit phase |
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Jun 23 2015, 12:27 AM
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#2
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Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
If you're right, Habukaz, then this makes two different sets of features that resemble cryovolcanic versions of fire fountains. At region 5, here, very bright effluent has been emplaced, while in other areas, near the scratch-like wrinkle features, dark material seems to have been emplaced.
I wonder if the same processes are generating both types of features, the difference being the specific type of "lava" being generated. I know that, on the Moon, differences in the lavas feeding the various fire fountains generated glasses ranging in color from green to red to black -- could different cryo-lava constituents determine whether you get a high-albedo unit emplaced vs. a low-albedo unit? -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Jun 23 2015, 02:35 AM
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#3
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Member Group: Members Posts: 112 Joined: 31-January 15 From: Houston, TX USA Member No.: 7390 |
But, what about the side view image that Gladstoner uplinked on page 2?
http://www.unmannedspaceflight.com/index.p...st&id=36162 Shouldn't we see something resembling relief, if not a fountain, in this image? I'm not saying I understand the bright spots, but I still have doubts over an active vent/cryovolcanism. Andy |
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