Time has come to colorize new refractor first light. I collected some exposures of M27 Dumbbell nebula with RGB filters, and here is the result:
Total exposure time was 50 minutes for luminance and 30 minutes for each of RGB filters. Each single exposure was 5 minutes long. Below crop 1:1 with nebula centered (right click and open in new window to see full resolution):
Image pixel scale is 1.5″/px. Shot under moderate sky – about 5 mag NELM.
Clear skies!