V1017 Sagittarii
 Visual band light curves for the 1973 and 1991 eruptions of V1017 Sagittarii, adapted from Salazar et al. (2017)[1] | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 18h 32m 04.4738s[2] |
| Declination | −29° 23′ 12.5935″[2] |
| Apparent magnitude (V) | 4.5±2 Max. 13.5 Min.[3] |
| Characteristics | |
| Spectral type | G5IIIp / white dwarf |
| Variable type | eclipsing recurrent nova (NR+E)
|
| Database references | |
| SIMBAD | data |
V1017 Sagittarii is a
recurrent nova to a dwarf nova.[5]
After the eruption of 1919, the orbital period of the binary system has decreased by 0.0273±0.0061%, to the 5.786290±0.000032 days.[1] Physical models cannot explain the orbital change of such sign and magnitude as in 2019.[6]
References
- ^ .
- ^ .
- ^ S2CID 118925493.
- ^ "V1017 Sagittarii". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-08-25.
- S2CID 119294221.
- .
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