« Back to Gallery

M33 by Dave Collings

Submitted by Chelsea Chin

M33: “The Triangulum Galaxy”

“M33, (The Triangulum Galaxy) is such a beautiful target to image. M33 is located 2.73 million light years from earth in the constellation Triangulum. It is a spiral galaxy like our Milky Way but slightly less than half the size. M33 has a lot of star formation areas occurring as seen in the image in the beautiful clusters and Ha regions. It took me 3 days to capture all the data, but it was worth it.

  • Image time is 5 hours Luminance, 4 hours Ha, 1.5 hours of each RGB for a total of 13.5 hours.
  • This was imaged with my Plane Wave 12.5″ CDK telescope with the 0.66 PW Reducer sitting on the Astro-Physics 1100 GTO CP4 mount.
  • My main camera is the ATIK 16200 Mono using Chroma filters. I stacked and edited the sub-frames using PixInsight.

It is a stunning beautiful image to capture and it was a pleasure imaging it again.  It has been 5 years since I last imaged it.”


David Collings – Blue Ridge Observatory | Sparta, North Carolina  USA