V1017 Sagittarii
V1017 Sagittarii is a cataclysmic variable star system in the constellation Sagittarius. It first erupted in 1919, reaching magnitude 7. Its other eruptions in 1901, 1973 and 1991 only reached magnitude 10, leading it to be reclassified from a recurrent nova to a dwarf nova.[4]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 18h 32m 04.4738s[1] |
| Declination | −29° 23′ 12.5935″[1] |
| Apparent magnitude (V) | 4.5±2 Max. 13.5 Min.[2] |
| Characteristics | |
| Spectral type | G5IIIp / white dwarf |
| Variable type | eclipsing recurrent nova (NR+E) |
| Astrometry | |
| Radial velocity (Rv) | 15 km/s |
| Proper motion (μ) | RA: 5.241±0.086[1] mas/yr Dec.: −10.392±0.066[1] mas/yr |
| Parallax (π) | 0.7892 ± 0.0437[1] mas |
| Distance | 1269+84 −60[2] pc |
| Other designations | |
| Database references | |
| SIMBAD | data |
References
- Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- Schaefer, Bradley E. (2018). "The distances to Novae as seen by Gaia". Monthly Notices of the Royal Astronomical Society. 481 (3): 3033–3051. arXiv:1809.00180. Bibcode:2018MNRAS.481.3033S. doi:10.1093/mnras/sty2388.
- "V1017 Sagittarii". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-08-25.
- Schaefer, Bradley E. (2010). "Comprehensive Photometric Histories of All Known Galactic Recurrent Novae". The Astrophysical Journal Supplement. 187 (2): 275–373. arXiv:0912.4426. Bibcode:2010ApJS..187..275S. doi:10.1088/0067-0049/187/2/275.
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