Spiral Galaxy M51: Color Composite May 15, 2000; Gettysburg College Obseratory 10 exposures in R and I (60 sec each) and 10 exposures in V (90 sec each) Total Exposures: V-15 min, R-10 min, I- 10min.  Combined using MaximDL software. Image by L. Marschall     copyright Laurence A. Marschall, Gettysburg College

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