Harold Corwin

IC 92 is not NGC 468 as I had long supposed. Courtney Seligman wrote in March 2015 that he had noticed that the declination of NGC 468 is identical with NGC 472 (which see for the full story). Briefly, NGC 468 is almost certainly a second observation of NGC 472 -- the brighter of the two galaxies in the area -- and is far less likely to be IC 92 -- the fainter -- with which it shares its RA.

When Bigourdan went over the area late in 1885 and again in 1900, he incorrectly identified a star close to JH's position as NGC 468. On the same nights, he found what he thought were two new nebulae in the area. One of these (IC 94) is another star, but the other (IC 92) is indeed a "nova".

The identity of IC 92 and NGC 468 was first suggested in MCG. Vorontsov apparently did not notice that NGC 472 shares its declination with NGC 468, or he was impressed by the proximity of NGC 468's nominal position to IC 92.

― IC Notes by Harold Corwin

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