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(IAAC) Obj: ngc457 - Inst: Newt 4.2" f/4.25
Observer: Lew Gramer
Your skills: Intermediate
Date and UT of Observation: 1996-11-12, 05:30 UT
Location: Medford, MA, USA (42N)
Site classification: urban
Limiting magnitude: 5.4
Seeing: 1.5 - very good
Moon up: no
Instrument: Newt Reflector 4.2" f/4.25 (AstroScan)
Magnification: 20x, 40x, 65x
Filters used: None
Object: ngc457
Category: Open Cluster
Constellation: Cas
Data: mag 6.4 size 13' (catalog) 20' (observed)
RA/DE: 1h19m +58o20m
Description:
A pretty field elongated about 20' NW of (and actually
abutting) phi 1 and phi 2 Cas. 30 stars can be counted
along a strikingly defined central "axis" or line, with
mags 8.5, 9, and 10+. In addition is the bright pair
phi 1 and 2 themselves, which are mag 5.5 and 7, resp.
Phi 1 is a pretty gold, while phi 2 (at PA 250) is a
violet-bluish by contrast. Thanks to Luginbuhl&Skiff's
excellent _Observing Handbook and Catalog_ for pointing
out this pretty, somewhat obscure open cluster!
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Karen Simmons & Lew Gramer dedalus@alum.mit.edu http://www.tiac.net/users/lewkaren
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