SH 274

Sharpless 274, also known as Abell 21 or Medusa Nebula, is a large planetary nebula in the constellation of Gemin. It was discovered in 1955 by UCLA astronomer George O. Abell. The braided serpentine filaments of glowing gas suggests the serpent hair of Medusa found in ancient Greek mythology.

 

Camera: Moravian G2 8300

Filters: 31mm unmounted Optolong

Optic: RC GSO 8" - Astro Physics telecompressor 0.67X

Mount: Ioptron CEM60 HP

Autoguider: Magzero QHY 5L II, OAG 9mm TS, Phd guiding

Frames: Ha 7nm 15X600 sec - RGB: 5X600 sec each Bin1 -30°

Processing: Pixinsight, PS

 

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