| Emission nebula | |
|---|---|
| Planetary nebula | |
|  NGC 7139 | |
| Observation data: J2000 epoch | |
| Right ascension | 21h 46m 08.586s[1] | 
| Declination | +63° 47′ 29.45″[1] | 
| Apparent magnitude (V) | 13[2] | 
| Constellation | Cepheus[2] | 
NGC 7139 is a planetary nebula located in the constellation of Cepheus. It was discovered on November 5, 1787, by astronomer William Herschel.[2]
See also
References
- 1 2 "SIMBAD Astronomical Database". Results for NGC 7139. Retrieved January 1, 2018.
- 1 2 3 "Courtney Seligman". NGC 7100-7149. Retrieved January 1, 2018.
External links
 Media related to NGC 7139 at Wikimedia Commons Media related to NGC 7139 at Wikimedia Commons
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