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RA: 13h 21m 56.65s
Dec: +38° 44′ 6.6″
Con: Canes Venatici
Ch: MSA:630, U2:109, SA:7
Type: galaxy, SBc
Mag: B=12.5, V=?
Size: 3.801′ x 2.511′
Synonyms: H II-646
Discovered in 1787 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "pB, L, iF, unequally bright, 3' or 4' diameter."
Burnham calls it a 12.6 mag spiral galaxy in Canes Venatici, measuring 3.2' x 2.3', which he describes as "faint, large,elongated, very gradually a little brighter in the middle; a three-branch spiral."
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.0 mag galaxy. Their coded description reads S,EL,VDIF,KNYCT BPD ARMS.
30cm - exlosfcbr. 149x: just vis N of m12.5 *. 238x: pa130, not concen, not
touching *, which is really SE. occas *ing SE of center. 2'.5x1'.5.
The Messier objects
The Bennett objects
The Caldwell list
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