Pease 1 Explained

Pease 1 is a planetary nebula located within the globular cluster M15 33,600 light years away in the constellation Pegasus. It was the first planetary nebula known to exist within a globular cluster when it was discovered in 1928 (for Francis G. Pease), and just four more have been found (in other clusters) since.^[1] At magnitude 15.5, it requires telescopes with an aperture of at least 300mm to be detected.^[2]

External links

• Pease 1: Planetary Nebula in Messier 15, SEDS Messier pages

Notes and References

1. Web site: Globular Cluster M15 and Planetary Nebula Pease 1 . www.astropix.com . dead . https://web.archive.org/web/20110718101428/http://www.astropix.com/HTML/SHOW_DIG/M15_Pease1.HTM . 2011-07-18.
2. Book: Dunlop , Storm . Storm Dunlop

   . Storm Dunlop . Atlas of the Night Sky . registration . . 2005 . 0-00-717223-0.