Wednesday, February 18, 2009

Green Comet makes Bright Exit

Look out to the west-southwest on the night of the 24th of Feb. and you'll see streaming in front of Mars the comet Lulin making its first and final pass around the Sun. You'll be joined in your observance by a 19-year-old fellow astronomy nerd in China, Quanzhi Ye, who discovered it two years ago.

So I read the whole NASA article and all, but now I'm wondering... If this thing is making its first and only pass at the Sun from a trillion miles away, then ... is this really just a Oort Cloud object that bumped into some other object? The other would-be comet gets bumped out and the other, Lulin, gets sent sunward at an angle that would send it too close to the Sun -- its eccentricity is 1.002 -- for the Sun to retain its tug. Then my real question is -- if it's going this close to the Sun, will it break up like Shoemaker-Levy? It would be impossible to predict how it would break apart and which pieces, if any, would remain in the inner solar system to join the other swarm of asteroids.