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出典:Wikipedia
出典:『Wikipedia』 (2011/04/05 05:27 UTC 版)
Open Cluster M25 (also known as Messier Object 25 or IC 4725) is an open cluster in the constellation Sagittarius. It was discovered by Philippe Loys de Chéseaux in 1745 and included in Charles Messier's list in 1764.
Messier 25