Messier 78 - Reflection nebula in Orion


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  • Description: Reflection nebula Messier 78 in Orion. This is about the brightest reflection nebula in the northern sky. M78 (aka NGC2068) shines at magnitude 8.3, 7.8 x 8.4 arc minutes in size. Located just a couple of degrees north east of Orion's belt stars, M78 shines blue from reflected starlight. There is also a fair amount of dark nebula present, as well as dust and in the top left corner is the edge of Barnard's Loop, a vast loop of red emission nebula. From a reasonably dark sky you can see M78 in 10x50 binoculars or a small telescope. The reflection nebula above M78 is NGC2071.

  • Camera: ZWO ASI533MC Pro at -15C, gain 0
  • Filter: UV/IR
  • Scope: Takahashi FSQ106, 530mm f5
  • Mount: Skywatcher EQ6-R Pro
  • Exposure: 15 x 10 minutes or 2.5 hours
  • Guiding: ASI210MM via ZWO OAG
  • System Control: ASI Air+
  • Location: near Elkwater, Alberta
  • Date: September 25 2025
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