Harold Corwin

NGC 7799 is a star about 20 arcsec northeast of a somewhat brighter star. D'A mentions both objects in his description, and has them in the correct relative orientation as well as at the correct distance. Furthermore, his position is within 20 arcsec of the true position.

Other catalogues have pointed to UGC 12882 as NGC 7799, but that is a very faint object, and the even fainter star southwest is twice as far from the object as d'A has measured it. I don't think it likely that d'A could have seen either object with his 11-inch refractor.

― NGC Notes by Harold Corwin

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