Alt. Designations: NGC 6218
Object Type: Globular  Cluster
Constellation: Ophiuchus
Distance: 16 kly
Right Ascension: 16h 47m 14.5s
Declination: -01° 56´ 50"
Visual Magnitude: 6.6
Apparent Dimension: 16.0´ Dia.
Best Month To View: Jun

Globular cluster M12, in the constellation Ophiuchus, is nearly a twin of M10. It is just a bit fainter and only slightly larger. Like its twin, it does not contain a lot of variable stars. M12 lies at a distance of 18,000 light-years from Earth and has a diameter of about 75 light-years. Visually it is a fairly remarkable sight. Its visual magnitude of 6.6 makes it an easy target to find with binoculars, and a telescope will bring out its slightly irregular shape.