NGC7139 (Planetary nebula)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From South El Monte , NGC7139 is visible all night. It will become visible at around 21:18 (PDT), 26° above your north-eastern horizon, as dusk fades to darkness. It will be lost to dawn twilight at around 04:30, 59° above your northern horizon.
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Name
NGC7139
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Object type
Planetary nebula
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Position
| Right ascension: | 21h46m [1] |
| Declination: | +63°47' [1] |
| Constellation: | Cepheus |
| Magnitude: | 13.30 (V) [1] 13.00 (B) [1] |
| Distance: | 2.4 kpc 7.8 klyr [2] |
| B-V Color (mag): | -0.30 |
Derived quantities
| Absolute mag (V): | 1.40 |
Sources