M22 is the third best globular cluster in the sky. It is a very large and bright cluster in Sagittarius that is visible to the naked eye in dark skies. It is easily resolved in an 4" telescope, and is a fine sight in an 8" telescope.

45 minutes exposure on Kodak Gold 1000 film.
5" f/5 refractor, prime focus.

3 minute exposure, Meade 416 XTE CCD.
8" f/6 newtonian telescope at prime focus.

3 minute exposure, Meade 416 XTE CCD.
300mm f/6 newtonian telescope at prime focus.

Combination of 10, 1 minute exposures, SBIG ST9XE CCD camera.
300mm f/6 newtonian telescope at prime focus.

Combination of 10, 1 minute exposures.
SBIG STL-1001E CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope at prime focus.