Sunday, January 9, 2011

APOD 2.6

helix_henry2000.jpg

This image is of the Helix Nebula which is in the constellation Aquarius.  Inside this constellation a sun-like star is dying.  This image is a 10 hour exposure of the planetary nebula.  The nebula has an outer halo and a very bright, hot central star.  The nebula is about 3 light-years across.  

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