Astronomy:V433 Aurigae
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Short description: Star in the constellation Auriga
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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[2] mas |
| 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 | |
| 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". ESA. https://www.cosmos.esa.int/web/hipparcos/interactive-data-access.
- ↑ 2.0 2.1 2.2 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. 3442900661273401600 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. et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics 355. Bibcode: 2000A&A...355L..27H.
- ↑ 4.0 4.1 "V433 Aur". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=V433+Aur.
- ↑ 5.0 5.1 Watson, Christopher (4 January 2010). "V433 Aurigae". The International Variable Star Index. American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=4195.
- ↑ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35495 Hipparcos stars in a common system". Astronomy Letters 32 (11): 759–771. doi:10.1134/S1063773706110065. Bibcode: 2006AstL...32..759G.
- ↑ 7.0 7.1 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V.
- ↑ 8.0 8.1 8.2 8.3 8.4 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. doi:10.1088/0004-637X/722/1/605. Bibcode: 2010ApJ...722..605H.
- ↑ 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. doi:10.1051/0004-6361/202142146. Bibcode: 2022A&A...657A...7K.
- ↑ 10.0 10.1 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. doi:10.1051/0004-6361/202141828. Bibcode: 2022A&A...662A.125F.
- ↑ 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. doi:10.1111/j.1365-2966.2010.17434.x. Bibcode: 2011MNRAS.410..190T.
- ↑ 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". Information Bulletin on Variable Stars 4659: 1–27. Bibcode: 1999IBVS.4659....1K. https://ibvs.konkoly.hu/pub/ibvs/4601/4659.pdf. Retrieved 2 December 2024.
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