V433 Aurigae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 05h 39m 18.3132s[2] |
| Declination | +29° 12′ 54.788″[2] |
| Apparent magnitude (V) | 6.0[3] |
| Characteristics | |
| Spectral type | B2IV-V[4] |
| U−B color index | −0.5 |
| B−V color index | +0.16 |
| Variable type | SPB[5] |
| Astrometry | |
| Radial velocity (Rv) | +22.9±1.9[6] km/s |
| Proper motion (μ) | RA: −0.82[7] mas/yr Dec.: −7.11[7] mas/yr |
| Parallax (π) | 1.0114±0.1708 mas[2] |
| Distance | approx. 3,200 ly (approx. 1,000 pc) |
| Details | |
| Mass | 8.7[8] M☉ |
| Radius | 9.8[9] R☉ |
| Luminosity | 14,128[10] L☉ |
| Surface gravity (log g) | 3.24[8] cgs |
| Temperature | 16,950[8] K |
| Rotational velocity (v sin i) | 27[8] km/s |
| Age | 19.8[11] Myr |
| Other designations | |
| BD+29°947, HD 37367, HIP 26606, HR 1924, SAO 77354[4] | |
| Database references | |
| SIMBAD | data |
V433 Aurigae is a variable star in the constellation Auriga. It is a slowly pulsating B star (SPB) that varies by a few hundredths of a magnitude over 4.6 days.[5] It is faintly visible to the naked eye under very good observing conditions. It shines with a luminosity approximately 14,000 times that of the Sun[10] and has a surface temperature of about 16,950 K.[8]
V433 Aurigae was discovered to be a variable star when the Hipparcos data was analyzed. It was given its variable star designation in 1999.[12]
References
- ^ "Hipparcos Tools Interactive Data Access". Hipparcos. ESA. Retrieved 8 December 2021.
- ^ a b c 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.
- ^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355. Bibcode:2000A&A...355L..27H.
- ^ a b "V433 Aur". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-03-21.
- ^ a b Watson, Christopher (4 January 2010). "V433 Aurigae". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 4 August 2015.
- ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35495 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 van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
- ^ a b c d e Huang, Wenjin; Gies, D. R.; McSwain, M. V. (2010). "A Stellar Rotation Census of B Stars: From ZAMS to TAMS". The Astrophysical Journal. 722 (1): 605. arXiv:1008.1761. Bibcode:2010ApJ...722..605H. doi:10.1088/0004-637X/722/1/605.
- ^ Kervella, Pierre; Arenou, Frédéric; Thévenin, Frédéric (2022). "Stellar and substellar companions from Gaia EDR3. Proper-motion anomaly and resolved common proper-motion pairs". Astronomy and Astrophysics. 657. arXiv:2109.10912. Bibcode:2022A&A...657A...7K. doi:10.1051/0004-6361/202142146.
- ^ a b Fouesneau, M.; Andrae, R.; Dharmawardena, T.; Rybizki, J.; Bailer-Jones, C. A. L.; Demleitner, M. (2022). "Astrophysical parameters from Gaia DR2, 2MASS, and AllWISE". Astronomy and Astrophysics. 662: A125. arXiv:2201.03252. Bibcode:2022A&A...662A.125F. doi:10.1051/0004-6361/202141828.
- ^ Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (2011). "A catalogue of young runaway Hipparcos stars within 3 KPC from the Sun". Monthly Notices of the Royal Astronomical Society. 410 (1): 190. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x.
- ^ Kazarovets, E. V.; Samus, N. N.; Durlevich, O. V.; Frolov, M. S.; Antipin, S. V.; Kireeva, N. N.; Pastukhova, E. N. (January 1999). "The 74th Special Name-list of Variable Stars" (PDF). Information Bulletin on Variable Stars. 4659: 1–27. Bibcode:1999IBVS.4659....1K. Retrieved 2 December 2024.