Ceres Low-Altitude Mapping Orbit (LAMO) |
Ceres Low-Altitude Mapping Orbit (LAMO) |
Dec 22 2015, 04:50 PM
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#31
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Senior Member Group: Members Posts: 3008 Joined: 30-October 04 Member No.: 105 |
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Mar 15 2016, 09:32 PM
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#32
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Senior Member Group: Moderator Posts: 3241 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
I wonder if that might be due to a difference in the impact flux of micrometeorites/small meteoroids compared to similar, airless surfaces we've seen at this scale, which in this size range, have all been moons. Moons would receive the typical background flux of those size objects, just as Ceres would, but there are also secondaries and sesequinaries to consider. The sesequinaries, chunks of material blasted out from other moons in the system or from the same moon but which take a longer path to come back than just a simple ballistic one, might be making relatively fresh craters in the outer solar system and the Moon look older than they otherwise would.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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