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NGC 4651 - Arp 189
Coma Berenices
Penryn, California
May 2007 / April 2008 (lum)
FS-128 (ag, ST-4)
ST-2000XM LRGB 10 minute subs

NGC 4651 is a type Sc/P galaxy with a prominent tidal tale.  Initially it was thought to be an optical jet from the galaxy but later studies proved the object to be a tidal tail from an encounter with another galaxy.