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Type: galaxy (in cluster), S0
Mag: B=12.4, V=?
Size: 3.019′ x 2.691′
PA: 161°
Synonyms: H II-166
Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "pB vS."
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads E,R,BM.
Tom Lorenzin, in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "12M; 2.2' diameter; very small and faint; condensed, almost stellar nucleus."
Observing site: Little Bennett Regional Park
Telescope: C-11
[12h 19m 48s, 12° 48m 0s] A small galaxy, much brighter in the middle. E0? B: E2/S0.
Location: Sutton, Pembs UK.
Time: 12:15
Telescope: 200mm F5 EQ Newt.
Limiting magnitude:6
Sky conditions:7/10
50x just about seen, 100x some shape with a not quite stellar core.
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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