Abell 31
 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (February 2014) |
| Nebula | |
|---|---|
 As seen from Mount Lemmon Sky Center | |
| Observation data: J2000 epoch | |
| Right ascension | 08h 54m 11.4s |
| Declination | +08° 54′ 30″ |
| Constellation | Cancer |
| Notable features | A very large and colorful PN |
| Designations | 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
- http://www.astronomy-mall.com/Adventures.In.Deep.Space/abellcat
- http://www.observing.skyhound.com/archives/feb/PNG_219.1+31.2
- http://www.astrosurf.com/zoll/images/abell31
- http://www.annesastronomynews/photo-gallery-ii/nebulae-clouds/abell-31-by-adam-block/
External links
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