The Pleiades - Nebula and Open Cluster in Taurus
The Seven Sisters
  • Description: The Pleiades, Seven Sisters, Messier 45 or Subaru - a bright open cluster embedded in reflection nebula in Taurus. An easy naked eye cluster in the winter sky but observing the nebulosity takes a good eye and dark skies. This was shot from my club's site, the Wilson Coulee Observatory where there is a growing amount of light pollution. It took a while to remove the gradients from that and this is about as deep as I can go from that site in visible RGB light.

  • Camera: SBIG STF-8300M at -15C
  • Filters: Baader 7nm H-alpha filter and Baader RGB
  • Scope: Takahashi FSQ106 refractor
  • Exposure: 8 x 10 minutes for red, blue and green
  • Location: Wilson Coulee Observatory, Alberta
  • Date: October 8th, 2021
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