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RA: 13h 32m 32.3s
Dec: +07° 17′ 38″
Ch: MSA:746, U2:195, SA:14
Ref: SIMBAD, Corwin (2004)
Type: galaxy (in group)
Mag: B=15.5, V=?
Size: 0.794′ x 0.269′
NGC 5212. Seen by John Herschel on only one night, and described simply as "extremely faint," there is nothing in Sir John's position. That position follows a group of galaxies with NGC 5208 and NGC 5209 being the brightest. JH picked these two up during the same sweep in which he saw NGC 5212, as well as in two other sweeps for N5208, one for N5209. In both cases, his positions measured during the other sweeps agree with those from the night in question. So, we do not have a systematic offset to help us here.
Steve and Malcolm have suggested three other galaxies that might be Sir John's object. One is CGCG 045-021, 10 arcmin south but 13 seconds of time east of JH's position. CGCG 045-012 is 30 seconds of time west but 6 arcmin north. Finally, my own choice is the one that Malcolm and Steve also favor: CGCG 045-014, 27 seconds of time straight west of JH's position. This is the second brightest of the three, and has the highest surface brightness. Those factors, along with the offset (close enough to 30 seconds, a common error), make it pretty sure that this is the correct galaxy.
The RNGC (Sulentic and Tifft 1973) notes that this is a 15.5 mag galaxy. Their coded description reads SLEL,BM,SPN.
The Messier objects
The Bennett objects
The Caldwell list
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