Messier 100 - Spiral Galaxy in Coma Berenices
  • Description: A 10th magnitude galaxy in Coma. Over a dozen smaller galaxies are also in the field magnitude 12.5 and fainter. M100 (NGC4321) is an almost face-on 10.1 magnitude spiral galaxy at 7.5 x 6.3 arc minutes.

  • Camera: SBIG ST-8300C at -20C
  • Scope: Takahashi FSQ-106N
  • Filter: Baader Luminance
  • Exposures: 12 x 10 minutes
  • Mount: Astrophysics AP900QMD
  • Guiding: SBIG ST-i via off-axis guider
  • Location: near Cayley, Alberta
  • Date: May 15, 2023
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