V382 Velorum
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Double star V382 Velorum |
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| AladinLite | |||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Sails of the ship | ||
| Right ascension | 10 h 44 m 48.39 s | ||
| declination | + 52 ° 25 ′ 30.7 ″ | ||
| Apparent brightness | 16.6 mag | ||
| Typing | |||
| Spectral class | Q | ||
| Variable star type | N / A | ||
| Astrometry | |||
| Proper movement | |||
| Rec. Share: | (0.9 +/- 5.8) mas / a | ||
| Dec. portion: | (−9.8 +/- 5.4) mas / a | ||
| Physical Properties | |||
| Rotation time | 3.79 h | ||
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Other names and catalog entries |
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V382 Velorum was a bright nova discovered on May 22, 1999 in the constellation Vela with a visual strength of 2.5 m . This was the brightest nova in the southern sky since Nova Puppis in 1942 .
The nova is the result of a nuclear explosion on a white dwarf of the ONeMg category ( oxygen - neon - magnesium ), as absorption lines of these elements were found in the light of the nova. In novae, hydrogen gas is drawn from the shell of another star from the dwarf star via an accretion disk until so much has accumulated on the dwarf that hydrogen burns. The binary star system V382 Vel has an orbital time of 3.5 hours and is 1700 to 2500 parsec away. It is also a source of soft X-rays .
The name follows the rules of naming variable stars and states that V382 Velorum is the 382nd variable star discovered in the constellation Vela.
Web links
Individual evidence
- ^ NOVA Vel 1999. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed on March 29, 2019 .
- ↑ a b c d e V0382 Vel. In: VSX. AAVSO , accessed March 29, 2019 .