Alt. Designations: NGC 6333
Object Type: Globular  Cluster
Constellation: Ophiuchus
Distance: 25.8 kly
Right Ascension: 17h 19m 11.8s
Declination: -18° 30´ 57"
Visual Magnitude: 7.9
Apparent Dimension: 12.0´ Dia.
Best Month To View: Jun

M9 is a globular cluster of stars located within the constellation of Ophiuchus. It is located at the edge of a dark patch of dark nebulosity. This cluster is about 26,000 light-years from us and has a diameter of about 70 light-years. The central region of the cluster has a distinct oval shape. M9's visual magnitude of 7.9 makes it a bit more challenging to find than some of the other globular clusters. It can be found with binoculars, and can be quite impressive in a 4-inch telescope.