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RA: 06h 01m 50.38s
Dec: −10° 35′ 52.8″
Ch: MSA:300, U2:271, SA:11
Ref: NGC/IC, Corwin (2004)
Type: star (single)
Mag: B=?, V=?
NGC 2142 = 3 Moncerotis = SAO 151037. JH says, "I am sure this star has a faint nebulous atmosphere 2 or 3 arcmin in diameter. Eye-glass examined, not dewed." This brightest part of the nebulosity is lost in the glare of the star on the POSS1, but a very faintly extended cloud can just be seen on the red plate. It would be nice to have independent confirmation of this.
Observations with the 72-inch f/8.8 speculum telescope at Birr Castle noted "Nov 30, 1850. Same appearance as Epsilon Orionis, but very much fainter."
The RNGC (Sulentic and Tifft 1973) notes that this is a nonexistent object. Their coded description reads NF S.
The Messier objects
The Bennett objects
The Caldwell list
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