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View Full Version : Asteroid Sheila Sprouts a Tail and Coma



Fraser
2010-Dec-12, 07:50 PM
When is an asteroid not an asteroid? When it turns out to be a comet, of course. Has this ever happened before? Why, yes it has. In fact it was just announced December 12, 2010 that the asteroid (596) Sheila has sprouted a tail and coma! This is likely a comet that has been masquerading [...]

More... (http://www.universetoday.com/81576/asteroid-sheila-sprouts-a-tail-and-coma/)

Ross 54
2010-Dec-16, 05:44 PM
596 Scheila is currently 3.1 AU from the Sun. That seems to be well outside the snow line. How is ice sublimating to create the tail and coma? Ross

BigDon
2010-Dec-17, 02:31 AM
Which particular kind of ice are you talking about Ross?

Ross 54
2010-Dec-17, 02:51 AM
Water ice seems to be assumed. Ross