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NGC 931 - MK 1040
Triangulum
Penryn, California
December 2007 / November 2009
FS-128  (ag, ST-4)
ST-2000XM RGB  15  minutes each (2007)
ST-2000XM Lum  10 minute subs

NGC 931 is a mag. 14.3 type Sbc , Seyfert-1 galaxy.  Distance is approximately 220 million light years.  The small galaxy at the upper edge of NGC 931 is about 33,000 light years beyond NGC 931 and is probably interacting with 931 (Ward, et.al., 1978).