IC 2391

chart

distance

It [IC 2391] is centred about 490 light-years away from Earth and can be seen with the naked eye.

open cluster of

Vela

random

It [Achernar] has a stellar classification of B6 Vep, but despite appearing similar to a main sequence star, it is thought to have recently exhausted the hydrogen in its core and begun to evolve away from the main sequence.

star

Omicron Velorum

tags

open cluster
IC object

visible in

Wikidata

https://www.wikidata.org/wiki/Q915499

Wikipedia

IC 2391 (Wikipedia) IC 2391 (also known as the Omicron Velorum Cluster or Caldwell 85) is an open cluster in the constellation Vela consisting of hot, young, blueish stars, some of which binaries and one of which is a quadruple. Persian astronomer A. a.-R. 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.