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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May 1 2010, 09:38 AM
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Senior Member Group: Members Posts: 2113 Joined: 13-February 10 From: Ontario Member No.: 5221 |
I think a good rule of thumb would be: it's an atmosphere if the body it surrounds is more or less spherical. That's a good a reference point as any right? Lutetia is excluded, but Ceres and maybe Vesta wouldn't be.
I doubt Hyperion or Proteus will break that rule anytime soon... |
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