NGC/IC Project Restoration Effort

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NGC2457

 

Basic Information


Location and Magnitude


Right Ascension: 7:54:45.7
Declination: +55:32:50
Constellation: LYN
Visual Magnitude: 15.4

Historic Information


Discoverer: Copeland
Year of discovery: 1874
Discovery aperture: 72.0

Observational


Summary description: F, pL, R, h 467 sp
Sub-type: Sbc

Corwin's Notes

===== NGC 2457. The identity of this galaxy is not in doubt: Copeland gives a micrometric offset from NGC 2456 for it, and it is just where he claims to have seen it. What is interesting is his comment in the description, "About 3' north of the nova, there seemed to be another vF nebula. Telescope now at the limit of its range." There is in fact a fainter galaxy just three arcmin to the north of NGC 2457. Dreyer could well have included this in the NGC, but chose not to, apparently because of Copeland's apparent uncertainty about its existence. This makes at least three nebulae found by Copeland that are not in NGC -- interesting since Copeland was a friend and colleague of Dreyer's. ----- Since I wrote that some time ago, I have created the "notngc" files to collect all the non-stellar objects seen before the NGC was assembled but not included in it. This neighbor of NGC 2457, which is CGCG 267-047, is discussed a bit further in those files.

Steve's Notes

===== NGC 2457 17.5" (1/19/91): extremely faint, very small, round, very low surface brightness. Forms a pair with NGC 2456 5' WSW. Two extremely faint companions 1.2' E and 3' NNE were not seen.