Pease 1

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^[2] by Francis G. Pease, and just two more have been found (in other clusters) since.^[3] At magnitude 15.5, it requires telescopes with an aperture of at least 300 millimetres (12 in) to be detected.^[4]

Pease 1

Emission nebula
Planetary nebula
Observation data: J2000.0 epoch
Distance	33,600[1] ly
Apparent magnitude (V)	+15.5[1]
Apparent dimensions (V)	3 arcsecs[1]
Constellation	Pegasus
Physical characteristics
Radius	0.24 ly
Absolute magnitude (V)	-
See also: Lists of nebulae