Rosetta flyby of Asteroid Lutetia |
Rosetta flyby of Asteroid Lutetia |
Dec 26 2009, 07:35 PM
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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 |
time to start a thread on one of the most interesting UMSF events of 2010...
Published thu on arXiv Ultraviolet and visible photometry of asteroid (21) Lutetia using the Hubble Space Telescope |
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Jul 10 2010, 05:07 PM
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Solar System Cartographer Group: Members Posts: 10256 Joined: 5-April 05 From: Canada Member No.: 227 |
"100 km across and no evidence of gravitional rounding. Any thoughts / evidence on what size that effect kicks in?"
That depends on the internal strength of the object, including its temperature history. Vesta at 500 km across is noticeably irregular - but rocky - whereas icy Mimas is only 400 km across and a bit elongated by tidal effects but a nice ellipsoidal shape. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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