Last updated on 10/26/2014

Sh2-274 Medusa Nebula

0bject Sh2-274 Medusa planetary nebula in Gemini  (aka Abell 21, PK 205+14.1)
Date January 30 - February 11,  2012
Exposure HαLRGB  480:15:15:15:15 (cropped; R = Hα/Red 60/40)
Camera STL11000M with AstroDon Gen II filters
Telescope ASA 10N f/3.7 on AP900GTO CP3
Guiding External guide head with 50mm MiniBorg
Processing MaximDL, Photoshop CS5, GradientXterminator, AstroActions
Comments Cold; Hα collected during waxing moon; NGC 2395 at upper right;  acquired w/CCD Commander