M54 NGC 6715

Object Type Globular Cluster
Constellation Sagittarius
Magnitude 7.7
Size 12.0' x 12.0'

The constellation of Sagittarius contains more Messier objects than any other constellation, 15 in all. 7 of these are globular clusters. M54 is one of 3 found by Messier in the 'Teapot'. It is a small, bright, and well condensed cluster that just hints at resolution in an 8" telescope.

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

45 minutes exposure on Fuji Superia 400 film.
5" f/5 refractor, prime focus.

Combination of 30, 60 second exposures.
SBIG STL-1001E CCD. 20" f/6.8 cassegrain telescope at prime focus.