Helix Planetary Nebula (NGC-7293) taken 9/28/11 with a modified Canon XSi attached to an Astrotech 8" RC optical tube
Helix Planetary Nebula (NGC-7293) taken 9/28/11 with a modified Canon XSi attached to an Astrotech 8" RC optical tube
Images (c)2011 By Mike Borman
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