Harold Corwin

IC 1497 does not exist. Bigourdan's single micrometric observation of it falls in empty space a little over an arcminute southwest of a faint galaxy. Wolfgang picked the galaxy as the IC object, but it is too faint to have been seen by Bigourdan.

Bigourdan also made some error in his first publication of this object. The position that he attaches to it is for a pretty bright star (probably one of his comparison stars) 2.5 minutes following and 18 arcmin north of the micrometric position. He corrected this in one of his later Comptes Rendus articles, and Dreyer picked it up for the notes to the second IC. Not that it helped...

― IC Notes by Harold Corwin

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