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Collinder 101

NGC 2251

Open cluster in Monoceros

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Proper Name	None
Messier Number	None
NGC/IC Number	NGC 2251
Other Designations	Collinder 101
Constellation	Monoceros
Right Ascension	6h 34m 45s
Declination	+8° 21' 15"
Distance	c. 4,500 light years c. 1,400 parsecs
Magnitude	Apparent: +7.30 Absolute: -3.41
Diameter	Apparent: 10' Actual: 13 light years
Optimum Visibility	January

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