ABELL 21- THE MEDUSA NEBULA
(PK 205+14.1)

This planetary lies in the constellation Gemini, and is an easy CCD target. Celestron Fastar 8 at f/1.95, PixCel 237.  This is a 1260 second image consisting of seven 180 second exposures Track and Accumulate using the AP900 with PEM correction engaged.  Unguided at -27.19 degrees Celsius.

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