Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people

— Carl Sagan

Triangulum Color

 adding previous Luminance to 2 hour RGB (40 min exp each) in Photoshop.  Note Blue star cloud IC 143, and IC 604 and other emission nebula

Triangulum Color

Nice

You've been busy.. on this one ;)

http://njastro.org/agx/category/tags/m33