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Type: galaxy, SBb
Mag: B=13.1, V=?
Size: 2.041′ x 1.548′
PA: 120°
Synonyms:H II-699
Discovered in 1787 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "F, pL, R, lbM, 1.5' diameter."
Burnham calls it a 13th mag spiral galaxy in Canes Venatici, measuring 1.4' x 1.0' , which he describes as "faint, pretty small, very slightly elongated and a little brighter in the middle."
A supernova erupted in this galaxy in 1977 (14.0p)
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy. Their coded description reads SB,IRRDIFHALO.
Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "13M; 1.5'x 1' extent; pretty little faint blob with 14M stellar nucleus; just S of a 7M star; 45' to NNE is N5407 (13M; 1'x 0.5' extent) with a 14M stellar nucleus; it's located inside a small group of five 9-11M stars, at the NE corner of the group; oblong with axis oriented N-S, and a 14M star 1' due N of the core."
UGC: pa(120).
SKyCat1: * N has V=6.6/1.1, 7' away.
15cm - fntly seen S of m7.5 *. unconcen.
25cm - 6' S of *. round, 1'.25 diam, poss elong ~E-W. not much concen but f *ar nuc.
30cm - pretty f, m7.5 * interferes. elong poss in pa100. poorly concen, perhaps *s assoc. 1'.1x0'.7 w/broad concen.
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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