Harold Corwin

NGC 2494 = IC 487. Marth's position, accurately copied into the NGC, is one minute of time too small, an obvious digit error. Swift's position in the IC is not too bad, but is far enough off the NGC position that neither he nor Dreyer caught the identity. Herbert Howe missed it, too, and commented only on the position angle of the galaxy (he has it at 110 degrees, though I would put it closer to 95 degrees).

Reinmuth, in his 1926 "Die Herschel Nebel," was, as far as I know now, the first to suggest the identity of the two objects. He describes the galaxy accurately, and provides an improved position for it, but also notes an "eFeS neb nnp 7.5'". The object most closely matching his distance from NGC 2494 is enough fainter than several other galaxies in the field that I do not believe that it is the object that Reinmuth found -- it could be a defect on the Heidelburg plate.

― NGC Notes by Harold Corwin

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