M2 is a bright and moderately large globular cluster in Aquarius, about 5 degrees north of the star beta aquarii. Easily visible in binoculars, the outer regions are resolved an 8" telescope.

45 minutes exposure on Kodak Ektachrome 400 film.
5" f/5 refractor, prime focus.

15 minutes exposure on Fuji Super HG II 400 film.
5" f/5 refractor at prime focus.

305 second image. Modified Canon Digital Rebel DSLR camera.
5" f/5 refractor at prime focus.

Combination of 20, 3 minute exposures. SBIG ST-8XE CCD.
300mm f/3.5 Tamron lens.

Combination of 10, 1-minute exposures, SBIG ST-9E CCD.
8" f/6.3 schmidt-cassegrain telescope at prime focus.

Combination of 15, 1-minute exposures, SBIG ST-9E CCD.
12" f/10 schmidt-cassegrain telescope with an f/6.3 focal reducer.