M 15
NGC 7078

Object Type Globular Cluster
Constellation Pegasus
Magnitude 6.3
Size 18.0' x 18.0'

M 15 is a moderately bright globular cluster in Pegasus, situated some 4 degrees north-west of the star Enif. It is easily visible in binoculars and could be visible to the naked eye in very dark skies. The outer regions are resolved in an 8" telescope.

Film Images


45 minutes exposure on Konica 3200 film.
5" f/5 refractor at prime focus.


Combination of 2, 30 minute exposures on Kodak Elite chrome 400 slide film.
5" f/5 refractor at prime focus.

CCD Images


Combination of 13, 3 minute exposures, SBIG ST-8XE CCD.
300mm f/3.5 Tamron lens.

The above image was taken when students were observing M15 with the main telescope as part of an observing lab. Since it was a very busy night, I had not checked what comets were visible. It turns out that one was just a little south of M15 that night. It is visible in the image due south (below) of M15, just to the right of a moderately bright star. An enlargement of part of the image showing the comet is below.


Combination of 15, 1 minute images, SBIG ST9-XE CCD.
12" f/10 schmidt-cassegrain with an f/6.3 focal reducer.


Combination of 15, 1 minute images, SBIG ST9-XE CCD.
14" f/11 schmidt-cassegrain with an f/6.3 focal reducer.


Combination of 20, 1 minute images, SBIG STL-1001E CCD.
16" f/10 schmidt-cassegrain at prime focus.