NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC2240
Basic Information
Location and Magnitude
Right Ascension: 6:33:10.5
Declination: +35:15:2
Constellation: AUR
Visual Magnitude:
Historic Information
Discoverer: Herschel W.
Year of discovery: 1786
Discovery aperture: 18.7
Observational
Summary description: Cl, pL, P, vlC, st 7, 10…15
Sub-type: OCL
Steve's Notes
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NGC 2240
18" (1/26/09): at 175x this is a fairly course, scattered group of three dozen mag 10-13 stars in a 10' region. Located just following mag 6.8 HD 46050. Many of the stars are in pairs and in conjunction with the nearby bright star probably caught William Herschel's attention. Also in the field is mag 7.0 HD 46072 about 12' SSW of the center of the star group.
Described by WH (VIII 49) as "A cluster of coursely scattered large stars, not rich" and by JH (h391) as "a v coarse straggling cl 10' diam; 30 or 40 stars 10...15m. A *10m taken, but one of 7m precedes to the north." Listed as nonexistent in the RNGC.