SH2-173 - Nebula in Cassiopeia
Sh2-173 - Nebula in Cassiopeia
  • Description: A rather faint emission nebula from the second Sharpless catalogue. Sh2-173 is located in Cassiopeia, near open cluster NGC103 which is located in the upper right part of the image. Open cluster Mayer 1 is a loose group of 20 or so stars scattered across the face of Sh2-173. Due to power problems at Mt. Kobau in 2007, this image is a bit short on exposure time and grainy as a result.

  • Camera: SBIG ST-8XE at -15C
  • Filter: Schuler 10nm hydrogen-alpha
  • Scope: Takahashi FSQ-106N
  • Mount: Losmandy G-11 Digital
  • Exposure: 3 x 30 minutes
  • Location: Mt. Kobau B.C.
  • Date: August 18, 2007
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