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Type: galaxy (HII), Sc
Mag: B=13.2, V=?
Size: 4.073′ x 2.691′
Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "F L R lbM r 4 or 5' diameter."
Burnham calls it a 12.5 mag spiral galaxy in Bootes, measuring 2.5' x 2.0', which is faint, large, round and a little brighter in the middle.
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads S,APM SF VKN,BARM NP LGE GAP N ARM W/KNOTS AT FAR END.
Steve Coe, using a 13" f/5.6, notes: "Faint, large, little elongated 1.2 X 1 in PA 60, very little brighter in the middle at 100X. This low surface brightness galaxy has a somewhat brighter bar in the middle, averted vision helps with this object."
POSS: br arms + core in pa60, but smlr pa okay: sev f *s and unusually br
HII regions inv. triangle *s at 6'.2 in pa295 and 5'.9 in pa330.
15cm - not vis.
- fairly lg, fairly f---vlosfcbr @ 80x. 3'x2', elong NE-SW w/wk-mod broad
concen. sm inconsp core, occas *ings. threshold *? close to SW end. BS,
7Jun1991, Anderson Mesa.
25cm - modsfcbr. 2'.5 diam, pa15. *ar nuc, broad core fading gradually to
30cm - broadly oval, 2'.5x2' in pa20. evenly and sl [wk even?] concen with
innermost regions elongate. f spots nr center, smooth otherwise. forms
triangle w/two *s.
The Messier objects
The Bennett objects
The Caldwell list
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