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NGC 4571
Coma Bernices
Penryn, California
April 2003
FS-128G  (ag, ST-4)
ST-10XME LRGB 10  minutes each - RGB binned 2x2

NGC 4571 is classified Sc.  Surface magnitude is 14.5.   Charles Messier entered the wrong coordinates for M 91 and W. Herschel believed NGC 4571 was the likely object that Messier had identified as M 91.  Current belief is that NGC 4548 represents Messiers' M91.