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RA: 23h 13m 51.6s
Dec: −22° 52′ 39″
Ch: MSA:1377, U2:349, SA:23
Mag: B=?, V=?
NGC 7522. There is no trace of a nebula matching Muller's description (magnitude = 16.0, diameter = 0.3 arcmin, irregularly round, suddenly brighter in the middle? [the query is Muller's], star 10 in position angle 75 deg, distance 3.2 arcmin) in his published position. Unfortunately, no sketch of the field survives among the unpublished Leander McCormick papers.
ESO has suggested that the number might apply to an extremely faint galaxy near the NGC position, but it is almost certainly too faint to have been seen even in the Leander McCormick 26-inch refractor -- it is barely visible on the blue POSS1 print.
Another possibility for Muller's object is the faint star about 2 minutes of time following the published position. It has the correct distance and position angle from a brighter star to the east-northeast, is about of the right magnitude, and is offset from the published position by about the same amount and in the same direction as many other of the nebulae in the Leander McCormick lists. I stress, however, that this is just another possibility for the identity of N7522. It could well be wrong, and the nebula truly lost.
The RNGC (Sulentic and Tifft 1973) notes that this is a nonexistent object. Their coded description reads NF S.
The Messier objects
The Bennett objects
The Caldwell list
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