The Medusa Nebula (Abell 21)

Posted by aimatsky
on Saturday, February 14, 2015

Image taken with QSI683 wsg ccd camera cooled to -20C. 16 Lum, 12 Red, 12 Green, 12 Blue, 12 Hydrogen Alpha at 10 minutes each exposure. Images were stacked in CCDSTACK2 and further processed in photoshop cs6. telescope was a Celestron 11 Edge HD on an Astrophysics AP 900 mount. Images were taken with an F7 reducer lens. Quail Creek, Arizona.

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