Messier 5 (M5) is a globular star cluster in the Serpens constellation. Its alternative designation is NGC 5904.
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. Synthetic luminance frame and LLRGB processing by JDS from R,G, B data using CCDStack and Photoshop CS5.
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