Constellation Ara Declination −48° 45′ 48″ Apparent magnitude (V) 5.2 | Right ascension 16 41 20 Distance 3765.3 ly (1155 pc) Apparent dimensions (V) 15′ | |
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NGC 6193 is open cluster containing 27 stars in the constellation Ara, visible to the unaided eye. NGC 6193 lies at the center of the Ara OB1 association, which extends over a square degree. The cluster is associated with (and provides the energizing radiation for) neighboring regions of the nebulosity NGC 6188.
Cluster members
NGC 6193 is dominated by two O class multiple star systems within 10" of each other at the centre of the cluster, and a probable binary B0 giant. There are at least 20 other early B stars in the cluster, of 9th and 10th magnitude.
References
NGC 6193 Wikipedia(Text) CC BY-SA