e! Science News -
12 Aug 2016 22:02
Messier 18 was discovered and catalogued in 1764 by Charles Messier -- for whom the Messier Objects are named -- during his search for comet-like objects [1]. It lies within the Milky Way, approximately 4600 light-years away in the constellation of Sagittarius, and consists of many sibling stars loosely bound together in what is known as an open cluster.
Share this Article