NGC/IC Project Restoration Effort

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NGC421

 

Basic Information


Location and Magnitude


Right Ascension: 1:12:9.6
Declination: +32:7:23
Constellation: PSC
Visual Magnitude: 12.1

Historic Information


Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7

Observational


Summary description: F, pS, R, bM
Sub-type: S0

Corwin's Notes

===== NGC 421 may be one of the several faint stars or wide double stars west of NGC 420. WH found the objects on 12 Sept 1784, describing them as "Two. Both eF, vS. The following is the largest." The field was examined again by JH, LdR, d'Arrest, and Bigourdan, none of whom found NGC 421, but all of whom placed NGC 420 within 5 seconds of time of WH's position for the pair. Dreyer has a curious statement in his note in the Scientific Papers (1912). Citing the observers above as having "... seen only one nebula," he goes on with "no doubt the following one." Yet all the observers have assigned the preceding number (H III 154 = N420) to the object. Dreyer himself followed JH's lead in this, giving the earlier number to the object that JH, d'A, and LdR all saw. In any case, there is no nebula in the area that might be N421. Since assigning the number to one of the stellar objects mentioned above is pure speculation, I'm not going to do it. Thus, N421 is "Not found."