KQ Puppis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 33m 47.96383s[1] |
| Declination | −14° 31′ 26.0026″[1] |
| Apparent magnitude (V) | +3.19[2] |
| Characteristics | |
| Spectral type | M2Iab/B0Ve[3] |
| U−B color index | +0.29[2] |
| B−V color index | +0.41[2] |
| Variable type | LC[4] |
| Astrometry | |
| Radial velocity (Rv) | +22[5] km/s |
| Proper motion (μ) | RA: -6.98[1] mas/yr Dec.: +4.82[1] mas/yr |
| Parallax (π) | 2.12 ± 0.45[1] mas |
| Distance | 1,400[6] pc |
| Details | |
| Mass | 13-20/17[6] M☉ |
| Radius | 570/4.35[6] R☉ |
| Luminosity | 59,800/13,800[6] L☉ |
| Temperature | ?/30,000[6] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
KQ Puppis (KQ Pup) is a spectroscopic binary star in the constellation Puppis. A red supergiant star and a hot main sequence star orbit each other every 9,742 days.[6]
References
- 1 2 3 4 5 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
- 1 2 3 Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues 2237: 0. Bibcode:2002yCat.2237....0D.
- ↑ González-Riestra, R.; Rossi, C.; Viotti, R. F. (2003). "First far-UV observations of KQ Puppis with FUSE". Astronomy and Astrophysics 399 (2): 681. Bibcode:2003A&A...399..681G. doi:10.1051/0004-6361:20021830.
- ↑ Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S 1: 02025. Bibcode:2009yCat....102025S.
- ↑ Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Washington: 0. Bibcode:1953GCRV..C......0W.
- 1 2 3 4 5 6 Rossi, C.; Altamore, A.; Baratta, G. B.; Friedjung, M.; Viotti, R. (1992). "The spectrum of the VV Cephei star KQ Puppis (Boss 1985). III - A possible model". Astronomy and Astrophysics 256: 133. Bibcode:1992A&A...256..133R.
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