QW Puppis (QW Pup) is a class F3V (yellow-white dwarf) star in the constellation Puppis. Its apparent magnitude is 4.49 and it is approximately 69.5 light years away based on parallax.
  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 12m 33.62514s[1] |
| Declination | −46° 45′ 33.4966″[1] |
| Apparent magnitude (V) | 4.49[2] |
| Characteristics | |
| Spectral type | F3V Fe-1.0[3] |
| U−B color index | −0.01[2] |
| B−V color index | +0.32[2] |
| Variable type | γ Dor[4] |
| Astrometry | |
| Radial velocity (Rv) | +0.10[5] km/s |
| Proper motion (μ) | RA: −135.806[1] mas/yr Dec.: +107.433[1] mas/yr |
| Parallax (π) | 46.9031 ± 0.1185 mas[1] |
| Distance | 69.5 ± 0.2 ly (21.32 ± 0.05 pc) |
| Absolute magnitude (MV) | 2.84[6] |
| Details | |
| Mass | 1.52[7] M☉ |
| Radius | 1.7[1] R☉ |
| Luminosity | 6.4[7] L☉ |
| Surface gravity (log g) | 4.17[8] cgs |
| Temperature | 6,934[7] K |
| Metallicity [Fe/H] | −0.24[6] dex |
| Rotational velocity (v sin i) | 51[7] km/s |
| Age | 1.6[1] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
It is a Gamma Doradus variable, ranging from 4.5 to 4.47 magnitude with a period of 0.96 days.[4] With a mass of 1.5 M☉ and an age of 1.6 billion years, it is about halfway through its main sequence lifetime.[7]
References edit
- ^ a b c d e f g Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c 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. Bibcode:2002yCat.2237....0D.
- ^ Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (2006). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc--The Southern Sample". The Astronomical Journal. 132 (1): 161–170. arXiv:astro-ph/0603770. Bibcode:2006AJ....132..161G. doi:10.1086/504637. S2CID 119476992.
- ^ a b Watson, C. L. (2006). "The International Variable Star Index (VSX)". The Society for Astronomical Sciences 25th Annual Symposium on Telescope Science. Held May 23–25. 25: 47. Bibcode:2006SASS...25...47W.
- ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
- ^ a b Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID 119257644. Vizier catalog entry
- ^ a b c d e Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. S2CID 55586789. Vizier catalog entry
- ^ David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. S2CID 33401607. Vizier catalog entry
- ^ "MAST: Barbara A. Mikulski Archive for Space Telescopes". Space Telescope Science Institute. Retrieved 8 December 2021.