Universe Today
Description:
History of Observation:
"I have determined in the same night [May 23 to 24, 1764] the position of another star cluster which is more considerable and of a larger extension: its diameter could occupy 30 arc minutes. This star cluster also appears at simple view [to the unaided eye] like a considerable nebulosity: but when examining it with a refractor, the nebulosity disappears, and one perceives nothing but a cluster of small stars, among which there is one which has more light: this cluster is little distant from the preceding; it is between the bow of Sagittarius and the tail of Scorpius. I observed in the Meridian the passage of the middle of this cluster, and compared it to the star Epsilon Sagittarii for determining its position: its right ascension was 264d 30' 24", & its declination 34d 40' 34" south."