Celestial hemisphere:  Northern  ·  Constellation: Gemini (Gem)  ·  Contains:  PK205+14.1  ·  Sh2-274
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Medusa Nebula (Abell 21), Alf Jacob Nilsen
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Medusa Nebula (Abell 21), Alf Jacob Nilsen
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Description

Medusa Nebula is a planetary nebula in constellation Gemini.  This is a faint object with app. mag. around 16 and at a distance of about 1500 l.y.  I obtained more than 35 hours integration RGB using our remotely controlled 16'' scope located at IC-Astronomy, Spain. 12 hrs og Ha/OIII will be added later to form the final version.

There is a lot of stars in the field and I struggled to reduce their sizes a bit and to enhance their colours.  Comments and suggestions for improvements are always welcome....

Enjoy!
AJ

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Medusa Nebula (Abell 21), Alf Jacob Nilsen