1. Messier 103Messier 103 (also known as M103, or NGC 581) is an open cluster where a few thousand stars formed in the constellation Cassiopeia. This open cluster was discovered in 1781 by Charles Messier’s friend and collaborator Pierre Méchain. It is one of the most distant open clusters, with distances of 8,000 to 9,500 light years from the earth and ranging about 15 light years apart.
Read “Messier 103” on English Wikipedia
Read “M103” on Japanese Wikipedia
Read “Messier 103” on DBpedia
Read “Messier 103” on English Wikipedia
Read “M103” on Japanese Wikipedia
Read “Messier 103” on DBpedia
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