NGC/IC Project Restoration Effort

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NGC657

 

Basic Information


Location and Magnitude


Right Ascension: 1:43:29.8
Declination: +55:52:30
Constellation: CAS
Visual Magnitude:

Historic Information


Discoverer: Herschel J.
Year of discovery: 1831
Discovery aperture: 18.3

Observational


Summary description: Cl, pRi, st 12
Sub-type: OCL

Corwin's Notes

===== NGC 657 looks like a poor cluster of relatively bright stars against the crowded backdrop of the Milky Way. JH has it as "A ** (h2070), the chief of a p rich loose cl; sts 12." His position is for the double, SAO 22555, but the apparent center -- a rough circle of 5 stars -- of the cluster is about 4 arcmin southwest of the double.

Steve's Notes

===== NGC 657 17.5" (10/25/97): very unimpressive asterism near at the double star O· 35 = 7.2/10.4 at 13". Possibly John Herschel was attracted to a group of ~10 stars 4'-5' SW of the bright double. There are a few additional stars following this group which lead back to the double. This grouping includes a couple of close, faint doubles but appears to be a weak asterism at all powers as there is no evident clustering.