NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC2420
Basic Information
Location and Magnitude
Right Ascension: 7:38:23.8
Declination: +21:34:27
Constellation: GEM
Visual Magnitude: 8.3
Historic Information
Discoverer: Herschel W.
Year of discovery: 1783
Discovery aperture: 18.7
Observational
Summary description: Cl, cL, Ri, C, st 11…18
Sub-type: I2r
Steve's Notes
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NGC 2420
18" (3/15/10): this is a rich, pretty group at low power with roughly 80-100 stars in a 10' region at 175x. Higher power brings out the fainter members. The brightest mag 9.4 star is at the west end of the cluster and forms a large mag contrast pair with a 13th companion 12" south. On the north end of the cluster is an equally spaced, collinear trio with separations of 14". The brighter stars in the cluster are pretty evenly distributed. Many of the fainter stars are in a 2'-3' patch that follows the mag 9.4 star and which includes some unresolved haze. A couple of brighter mag 8-9 stars are in the field to the south of the cluster and also to the north.
17.5" (1/23/93): excellent cluster of at least 50 stars mag 11-15 within a 6' diameter. Good spread of magnitudes, includes 15 stars mag 11-13 over a rich background of numerous mag 14-15 stars and unresolved haze. The brightest mag 10 star is on the west side and has a mag 13 companion 12" S. Located between mag 9.1 SAO 79575 6' NNE and mag 8.9 SAO 79563 6' SSW. A faint galaxy pair, CGCG 117-059 and CGCG 117-060 (separation is just 40"), is in the field 10' WNW! Both of these are extremely faint and small.