Pease 1

Pease 1
Nebula
Observation data: J2000.0 epoch
Distance 33,600 ly[1] ly
Apparent magnitude (V) +15.5[1]
Apparent dimensions (V) 3 arcsecs[1]
Constellation Pegasus
Physical characteristics
Radius - ly
Absolute magnitude (V) -

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 300-millimetre (12 in) to be detected.[2]

References

  1. 1 2 3 4 http://www.astropix.com/HTML/SHOW_DIG/M15_Pease1.HTM
  2. ↑ Dunlop, Storm (2005). Atlas of the Night Sky. Collins. ISBN 0-00-717223-0.
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