NGC 6790
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| Emission nebula | |
|---|---|
| Planetary nebula | |
 Hubble Space Telescope image of NGC 6790 | |
| Observation data: J2000 epoch | |
| Right ascension | 19h 22m 56.966s[1] |
| Declination | +1° 30′ 46.46″[1] |
| Distance | 19 kly (5.7 kpc)[2] ly |
| Apparent magnitude (V) | 10.45[1] |
| Apparent dimensions (V) | 4″ × 3″[2] |
| Constellation | Aquila |
| Designations | BD+01 3979, HD 182083, NSV 11959[3] |
NGC 6790 is a young, compact[2] planetary nebula with a high surface brightness[4] located in the equatorial constellation of Aquila. Imaging by the Hubble Space Telescope shows elongated shells surrounding the central star. The distance to this nebula is poorly known, but is estimated at 19 kilolight-years, and it is roughly 6,000 years old. The expansion velocity of the neutral hydrogen component is in the range 15−19 km s−1.[2] The central star is a white dwarf with a temperature of around 73,500 K and a photographic magnitude of 11.1. It has a mass of 0.6 M☉, having evolved from a star with a mass about the same as the Sun.[4]
References
[edit | edit source]- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
External links
[edit | edit source]- Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- Error creating thumbnail: File missing Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons
- The Hubble European Space Agency Information Centre Hubble picture and information on NGC 6790
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