NGC 7139
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Planetary nebula data from NGC 7139 |
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|---|---|
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| AladinLite | |
| Constellation | Cepheus |
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Position equinox : J2000.0 |
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| Right ascension | 21h 46m 08.6s |
| declination | + 63 ° 47 ′ 31 ″ |
| Appearance | |
| Apparent brightness (visual) | 13.3 mag |
| Apparent brightness (B-band) | 13.0 likes |
| Angular expansion | 1.28 ′ × 1.28 ′ |
| Central star | |
| Physical data | |
| Redshift | −0.000181 |
| Radial velocity | −54.2 km / s |
| distance | 4300 ly |
| history | |
| discovery | Wilhelm Herschel |
| Date of discovery | November 5, 1787 |
| Catalog names | |
| NGC 7139 • PK 104 + 7.1 • GC 4706 • H III 696 • | |
NGC 7139 is a planetary nebula in the constellation Cepheus , which is approximately 4,300 light years from Earth . NGC 7139 was discovered on November 5, 1787 by the German-British astronomer Friedrich Wilhelm Herschel .
Web links
Commons : NGC 7139 - collection of images, videos, and audio files
