Harold Corwin

NGC 123 is probably one of two 15th magnitude stars, both in GSC, near Tempel's positions (see NGC 122 for more on this) in roughly the correct relative positions. Since there are no nebulae anywhere in the area, I've tentatively identified these two stars with the objects he described. A brighter galaxy, NGC 120 (which see) is further on to the northwest, again in the correct relative position which Tempel described in his paper.

Bigourdan measured this star, but gave it the number NGC 122; there is nothing at all at his one measured place for NGC 123.

Finally, in his early lists, Wolfgang made the star I've chosen as NGC 123, "NGC 122", and put "NGC 123" on another star. However, the relative positions are not accordant with those given in the NGC, so I have given those possible identifications lower weight.

― NGC Notes by Harold Corwin

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