CCDSoft, Sigma-Clip, Photoshop CS w/ the Fits Liberator plugin,
Paint Shop Pro,and Noel Carboni's actions
North is to the top
M2 is a globular
cluster in the constellation of Aquarius. Its actual position in the
galactic halo places it in the southern galactic cap, almost
directly beneath the southern pole of our Galaxy, the Milky Way, and
at a distance from us of around 47,000 light-years.
M2 is a compact and fairly dense globular cluster. It is one of the
richer globulars, containing more than 100,000 stars and stretching
more than 150 light-years across. Like other globular clusters, M2
is made up of stars that are all the same age. These are amongst the
oldest stars in our Galaxy, at an age of about 13 billion years.