Messier 15

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Messier 15
Messier 15 HST.jpg
Observation data (J2000 epoch)
Class IV
Constellation Pegasus
Distance 33.6 kly (10.3 kpc)
Physical characteristics
Other designations NGC 7078, GCl 120

See also: Globular cluster

Messier 15 is a globular cluster in the constellation of Pegasus. This globular cluster was discovered by Jean-Dominique Maraldi in 1746. M15 is about 33,600 lightyears from Earth, and 175 lightyears in diameter.[1] It has more than 100,000 stars, 112 variable stars and 8 pulsars. M15 also contains Pease 1, the first planetary nebula discovered in a globular cluster.[2]

References[change | edit source]

  1. Messier 15 on astropix
  2. Cohen, J. G.; Gillett, F. C. (1989). "The peculiar planetary nebula in M22". Astrophysical Journal 346: 803–807. doi:10.1086/168061.