M15 (NGC 7078)
Globular cluster located in the constellation Pegasus.
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M15 is about 35,000 light years away and 12 billion years old. There is a planetary nebula in M15 (you might be able to see the bright blue spot in the lower left of the cluster) which makes M15 one of only 4 clusters to contain one. This cluster also has 9 known pulsars and 112 variables.
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Messier 15
Directions on how to find M15 in the night sky -
Messier Monday: An Ancient Globular Cluster, M15
Info on M15 but also a look at main sequence evolution, a simulation of how starbursts may destroy globular clusters and a cool graphic showing the position of the 119 globular clusters within 50,000 light years of the galactic center. -
Messier Object 15
Interesting info on M15 including its variable stars, apparent magnitude of its stars, M15's core collapse and its pulsars.
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