| 词条 | Abell 31 |
| 释义 |
| image = Abell31s.jpg | caption = As seen from Mount Lemmon Sky Center | epoch = J2000 | ra = {{RA|08|54|11.4}} | dec = {{DEC|+08|54|30}} | name = Abell 31 | dist_ly = | appmag_v = | size_v = | radius_ly = | absmag_v = | type = planetary | constellation = Cancer | notes = A very large and colorful PN | names = Sh2-290, PK 219.1+31.2, A 31, ARO 135 }} Abell 31 is an ancient planetary nebula in the constellation of Cancer. It is estimated to be about 2,000 light years away. Although it is one of the largest planetary nebulae in the sky, it is not very bright. References
External links
3 : Planetary nebulae|Abell planetary nebulae|Cancer (constellation) |
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