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162:), and just four more have been found (in other clusters) since. At magnitude 15.5, it requires telescopes with an aperture of at least 300-millimetre (12 in) to be detected.
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158:. It was the first planetary nebula known to exist within a globular cluster when it was discovered in 1928 (for
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Pease 1: Planetary Nebula in
Messier 15, SEDS Messier pages
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187:"Globular Cluster M15 and Planetary Nebula Pease 1"
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208:O'Meara, Stephen James; Levy, David H. (1998),
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211:Deep-Sky Companions: The Messier Objects
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299:. You can help Knowledge (XXG) by
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295:This nebula-related article is a
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47:Observation data: J2000.0
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98:Physical characteristics
351:Pegasus (constellation)
77:Apparent dimensions (V)
242:Atlas of the Night Sky
140:located within the
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114:Absolute magnitude
67:Apparent magnitude
346:Planetary nebulae
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193:. Archived from
191:www.astropix.com
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160:Francis G. Pease
142:globular cluster
138:planetary nebula
126:Lists of nebulae
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31:Planetary nebula
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23:Emission nebula
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197:on 2011-07-18.
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301:expanding it
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151:away in the
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149:light years
340:Categories
166:References
124:See also:
238:(2005).
55:Distance
248:Collins
156:Pegasus
147:33,600
134:Pease 1
93:Pegasus
82:arcsecs
17:Pease 1
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104:Radius
136:is a
72:+15.5
49:epoch
297:stub
252:ISBN
216:ISBN
145:M15
116:(V)
69:(V)
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174:^
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119:-
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
