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Type: galaxy, Sb
Mag: B=12.9, V=?
Size: 1.698′ x 1.047′
Synonyms: H I-185
Discovered in 1787 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "c or pB, S, R, psmbM."
Burnham calls it a 12.8 mag spiral galaxy in Bootes, measuring 0.9' x 0.5', which is considerably bright, pretty small, elongated and pretty gradually a little brighter in the middle.
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy. Their coded description reads SLEL,UHISB.
G. de Vaucouleurs ("Galaxies and the Universe", Chapter 14 - Nearby Groups of Galaxies) notes that the five brightest members of the NGC 5676 Group are NGC 5676, NGC 5660, NGC 5633, NGC 5689 & IC 1029.
Steve Coe, using a 13" f/5.6, notes: "Pretty bright, pretty small, elongated 1.5 X 1 in PA 20 and has a bright middle at 100X."
15cm - not vis.
- mod f & sm @ 80x. 140x: 40" diam and sl oval elong in pa10. mod even
concen to inconsp sub*ar center. BS, 17May1991, Texas Star Party.
25cm - featureless f circ patch 1' diam w/diffuse edges. sl brtr twd undef core.
30cm - sm 40" oval elong approx N-S. some concen, no nuc. unevenly br.
The Messier objects
The Bennett objects
The Caldwell list
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