Comet ISON (C/2012 S1)
From the author of Sizing Up The Universe
Stars and Comet stacked separately, combined in Photoshop.
Star near left edge is magnitude 13.1 Gaia DR3 star 3812884846549335424.
04:30--05:23 EST, Nov 4, 2013
Starlight Xpress SXV-H9 on 10" RC
Stack of 120 20-second exposures.