Hermann Kobold found IC 457 on 4 May 1893, along with 8 galaxies besides NGC 2332 and 2340, with the 18-inch refractor at Strasbourg. His position matches PGC 20272, which was discovered by Bindon Stoney at Birr Castle on 2 Jan 1851. Although placed fairly accurately on a constructed diagram, no absolute positions were determined so Dreyer relied on Bigourdan's measurement. Unfortunately, Bigourdan's position refers to a faint star so the NGC position for NGC 2330 is erroneous. Assuming PGC 20272 is the galaxy Dreyer had in mind as NGC 2330 (Malcolm Thomson disagrees), then NGC 2330 = IC 457 = PGC 20272. UGC and CGCG label this galaxy as IC 457 and don't use the NGC designation. See RNGC Corrections #5 and Corwin's notes for much more on this complicated story!

400/500mm - 17.5" (1/20/90): extremely faint and small, round. A mag 15 star is 1' NE. Located 2' SW of NGC 2332.

600/800mm - 24" (2/15/18): at 375x fairly faint, small, nearly round, 20" diameter, even surface brightness. Located 2' SSW of NGC 2332. A mag 15.1 star is between this galaxy and NGC 2332. Note: This galaxy is identified as IC 457 in the CGCG and UGC.

Notes by Steve Gottlieb