IC 2391

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

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Science and technology

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What Wikipedia says

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 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.

Excerpt from the Wikipedia article “IC 2391”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Roberto Mura, Public domain, via Wikimedia Commons.