General





Messier 56

Messier 56

Messier 56 is a globular cluster in the constellation Lyra. It was discovered by Charles Messier on January 19, 1779. The cluster is located almost midway along an imaginary line between Albireo and Sulafat. Astronomers…





Messier 55

Messier 55

Messier 55 (M55), also known as the Summer Rose Star, is a globular cluster located in the constellation Sagittarius. The stars in the cluster are mostly old and red, but M55 also contains an unusually high…