Messier 15 ()
Messier object number 15 (NGC 7078) is a globular cluster and in the constellation of Winged Horse. It is also known as the . It is approximately 33000 lightyears away from earth.
M15 is one of the most densely packed globular clusters in our Milkiway Galay, containing more than 100.000 stars. Still, it is hard to see with the naked eye, but makes for an excellent object to be viewed with binoculars. It was first discovered by Jean-Dominique Maraldi in the 18th century and subsequently included in his catalogue by Charles Messier. Scientists estimate its age to about 12 billion years, making it one of the oldest globular clusters in our Milkyway.