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Omicron Velorum Cluster

C85, Collinder 191, IC 2391

Proper NameOmicron Velorum Cluster
Caldwell NumberC85
NGC/IC NumberIC 2391
Other DesignationsCollinder 191
Right Ascension8h 40m 32s
Declination-53° 2' 0"
Distance494 light years
152 parsecs
MagnitudeApparent: +2.6
Absolute: -3.1
DiameterApparent: 1°
Actual: 8 light years
Number of Starsc. 30
Optimum VisibilityFebruary (Usually visible from southern latitudes)
NotesA loose open star cluster in the southern parts of Vela. The cluster takes its name from Omicron Velorum, the brightest of its members, but it contains several other stars at, or close to, naked eye visibility. The cluster is spread over an area of the sky nearly twice the diameter of the Moon's disc.


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