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C54

NGC 2506

Proper NamesNone
Caldwell NumberC54
NGC/IC NumberNGC 2506
ConstellationMonoceros
Right Ascension8h 0m 1s
Declination-10° 46' 12"
Distancec.12,700 light years
c.3,900 parsecs
MagnitudeApparent: +7.6
Absolute: -5.3
DiameterApparent: 12'
Actual: 43 light years
Number of Starsc. 150
Optimum VisibilityFebruary
NotesAn open star cluster on the southern fringes of Monoceros, C54 shows a loose structure, with its more massive members tending to cluster within its distinct core, while less massive stars form a more diffuse halo around the cluster. The denser core region represents approximately one third of the cluster's full diameter.

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