Globular Cluster M10 (also known as Messier Object 10 or NGC 6254) is a globular cluster in the constellation Ophiuchus. It was discovered by Charles Messier on May 29 1764, cataloged as number 10 in his list, and described as a "Nebula without stars."

Description

M10 has an apparent diameter of some 20', about 2/3 the apparent diameter of the moon, which translates to a spatial diamater of 83 light years at its estimated distance of 14,300 light years. Viewed through medium sized telescopes it appears about half that size (8' to 9'), as its brighter core is only 35 light years across. Only 4 variable stars have been discovered in this cluster.

External links

• Messier 10, SEDS Messier pages

Globular clusters | Messier objects | NGC objects | Ophiuchus constellation

Messier 10 | Messier 10 | Cúmulo globular M10 | M10 | M10 | Messier 10 | M10 | Messier 10 | Шаровое скопление М10 | Hviezdokopa M10 | Messier 10 | M10