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Cepheus OB2 Association

Cep OB 2, STAR 11

Proper NameCepheus OB2 Association
Messier NumberNone
NGC/IC NumbersContains the open cluster NGC 7160 (Collinder 443) and the H II region IC 1396, the Elephant's Trunk Nebula
Other DesignationsCep OB 2, STAR 11
ConstellationCepheus
Right Ascension21h 51m 0s
Declination+60° 0' 0"
Distancec. 2,900 light years
c. 889 parsecs
MagnitudeApparent: +8.96
Absolute: -0.81
(approximate, based on brightest member star)
DiameterApparent: 10°
Actual: c. 490 light years
Brightest StarHD 211321
Optimum VisibilityAugust / September (usually visible from northern latitudes)

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