Lobster claw, bubble nebula and open cluster M52
The Esprit 100 triplet refractor and Moravian G3-16200EC CCD camera riding on the EQ6 mount and Skyshed Pier.

Imaging telescope: Esprit 100 triplet refractor and Moravian G3-16200EC CCD camera riding on the EQ6 mount and Skyshed Pier.

From left to right, the Lobster Claw Nebula (Sharpless 157), the Bubble Nebula (NGC 7635) and open cluster M52. I captured this image of all three in October 2018 using the Esprit 100 triplet, Moravian 16200EC CCD camera and Optolong H-alpha filter. They lieĀ in the constellation Cassiopeia. To the lower right in the image is a smaller emission nebula, NGC 7538.

Technical:

  • Skywatcher Esprit 100mm APO refractor, F5.5
  • Moravian G3 16200 CCD @ -10deg
  • Optolong filters Ha 7nm
  • Skywatcher EQ6 mount / Skyshed Pier
  • 300min / 10min subs
  • SGP, PHD, EQmod softwares for acquisition
  • Pixinsight 1.8 calibration, processing
  • Seeing and transparency average
  • Location: Kitchener, Ontario