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Astrophotography by Kent Biggs |
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Well it is time to bid
Comet Lulin a fond farewell. It has indeed been a fantastic comet.
Above is a composite of a series of images taken about one week after
Lulin's closest approach to earth. At magnitude 6.3, the comet
is getting fainter. Note the ion tail is nearly invisible in this
image as it is mostly behind the comet pointing away from earth as well as
behind the dust tail. Also note there are a group of galaxies in the
middle of the image the largest of which is NGC 3020. Comet Lulin will
continue to become fainter as it leaves the inner solar system.
Its orbit is nearly parabolic it so will not return in our lifetime, but it
will rejoin is brethren of icy worlds at our Sun's Oort cloud, thought to be
material remaining from the formation of the solar system and extending some
5 to 20 trillion miles from us.
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Optics: |
Takahashi FS102 F/6 |
Date: |
February 28, 2009 | |||