Pease 1
Planetary nebula
From Wikipedia, the free encyclopedia
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]
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Apparent magnitude (V)+15.5[1]
ConstellationPegasus
| 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) | - |
