Deep space
Omicron Velorum Cluster
Open cluster · C85 · IC 2391
Open cluster in Vela
Photo: Roberto Mura · Public domain · Wikimedia Commons
IC 2391 is an open cluster in the constellation Vela consisting of hot, young, blueish stars, some of which are binaries and one of which is a quadruple. Persian astronomer Abd al-Rahman al-Sufi first described it as "a nebulous star" in c. 964. It was re-found by Abbe Lacaille and cataloged as Lac II 5.
Description from Wikipedia (CC BY-SA 4.0).
In your sky
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Key facts
Distance
~500 light-years
Apparent mag.
+2.5
Apparent size
29.1′
Best seen with
Naked eye
Catalogue
C85 · IC 2391
Did you know
- Listed as Caldwell 85 in the Caldwell catalogue, also known as IC 2391.
- Found in the constellation Vela.
- Bright enough to see with the naked eye.
