Messier 99 (M99) is a grand design spiral galaxy in the Coma Berenices constellation. M99 is also known as St. Catherine’s Wheel and even the Coma Pinwheel Galaxy. Its alternative designation is NGC 4254.
Image taken using the 32-inch Schulman telescope with STX camera on Mt. Lemmon, AZ. Data capture and reduction by Adam Block, University of Arizona. LRGB processing by JDS using CCDStack and Photoshop CS5.
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