Globular clusters are the most amazing objects. Huge balls of stars, they are particularly interesting for astronomers because all the stars in the ball formed at the same time and so a close study of the different stars in a cluster can tell us a lot about how stars of different initial mass age at different rates. Globular clusters are not formed within the galaxy structure, but usually large numbers of them form a halo around the main galactic structure. Our Milky Way galaxy has more than a hundred of these objects, of varying sizes, and several examples of them are displayed below.Globular clusters usually require a larger telescope and higher magnification to observe to best effect, although the larger and closer ones can be spectacular in small instruments.
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