M33 - The Triangulum Galaxy
From the author of Welcome to the Universe in 3D
20:49 EDT Oct 31, 2008.
Starlight Express SXV-H9 on 4" Tak FSQ refractor at f/5.
L = 92 min, R = 44 min, G = 42 min, B = 36 min
(unguided 2-minute subexposures).
Digital Development, Curves.