Messier 103Messier 103
Rare
Rarity: Rare
A topic known well beyond its field, found in many languages.
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.
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What Wikipedia says
Messier 103 (also known as M103, or NGC 581) is a small open cluster of many faint stars in Cassiopeia. It was discovered on 27 March 1781 by Pierre Méchain, but later added as Charles Messier's last deep-sky object in his catalogue.
Excerpt from the Wikipedia article “Messier 103”, under the CC BY-SA 4.0 license. Read the article on Wikipedia
Image: Auteur inconnu, Public domain, via Wikimedia Commons.
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