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Mag: B=13, V=?
Size: 2.454′ x 1.995′
NGC 5110 = NGC 5111. The NGC position for N5111 (from the Herschels) is excellent, while that for N5110 from Swift's third list is a little off. But the identity is clinched by Swift's note that the object is "in line with 2 pB stars".
The confusion has come from LEDA which incorrectly adopted a much fainter galaxy as N5111. Though this galaxy has stars nearby, they form a line to the north, with the galaxy being well off the line. It is also enough fainter that Swift probably would not have swept it up given the proximity of the brighter object 19 seconds east and six arcmin north.
The identity, by the way, was first suggested by Reinmuth in "Die Nebel Herschel."
The RNGC (Sulentic and Tifft 1973) notes that this is a galaxy. Their coded description reads SLEL,BM.
The Messier objects
The Bennett objects
The Caldwell list
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