NGC 7139
Planetary nebula in the constellation Cepheus
From Wikipedia, the free encyclopedia
NGC 7139 is a planetary nebula located in the constellation of Cepheus. It was discovered on November 5, 1787, by astronomer William Herschel.[2]
| 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] |
