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Type: galaxies (interacting), Sa
Mag: B=13, V=?
Size: 2.137′ x 0.933′
Synonyms: H II-651
Discovered in 1787 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "pB, pL, iE, easily resolvable."
Together with NGC 5929 listed as No. 90 in Arp's "Atlas of Peculiar Galaxies" (Astrophysical Journal Supplement, vol. 14, 1966.) He remarks "absorption lanes around companion."
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy. Their coded description reads R,SLDIF,BM,CONTW/29.
Van den Bergh (1961, Astronomical Journal, Vol 66, p566) notes that this galaxy forms a pure pair with NGC 5929 0.5 arcminutes away.
Steve Coe, using a 13" f/5.6, notes: "Pretty faint, small, round and little brighter in the middle at 165X. These two galaxies (NGC 5929 and NGC 5930) form a contact pair that is elongated 2 X 1 in PA 45, somewhat like a figure 8."
RC3: no mags
15cm - mod f circ spot in string w/three m13-14 *s @ 80x. 140x: two nucs aligned
NE-SW are sim-br and in common env. 1'.0 diam, sl elong NE-SW. mod broad
concen mostly except vf sub*ar nucs. BS, 17May1991, Texas Star Party.
The Messier objects
The Bennett objects
The Caldwell list
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