NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC2309
Basic Information
Location and Magnitude
Right Ascension: 6:56:3.6
Declination: -7:10:28
Constellation: MON
Visual Magnitude: 10.5
Historic Information
Discoverer: Herschel W.
Year of discovery: 1785
Discovery aperture: 18.7
Observational
Summary description: Cl, pL, pRi, mC, st 13
Sub-type: II2m
Steve's Notes
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NGC 2309
17.5" (1/1/92): three dozen stars mag 11-15, fairly rich, compact, 4' diameter. Most stars are located within two streams. The brighter stars in the southern stream are oriented E-W. A fainter star lane to north is oriented NW-SE. At the NW end it hooks NE to mag 9 SAO 133914 about 4' N of the cluster's center. Includes several close pairs with two pairs near the center and a double star 11/14 at 7" separation at the west end.