RT Aurigae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 06h 28m 34.0889s |
| Declination | +30° 29′ 34.921″ |
| Apparent magnitude (V) | 5.75[1] |
| Characteristics | |
| Spectral type | F8Ibv |
| U−B color index | 0.5[2] |
| B−V color index | 0.74[1] |
| Variable type | Cepheid variable |
| Astrometry | |
| Radial velocity (Rv) | 21.6 km/s |
| Proper motion (μ) | RA: 0.34 mas/yr Dec.: -14.95 mas/yr |
| Parallax (π) | -1.10 ± 1.41 mas |
| Distance | 473[3] pc |
| Absolute magnitude (MV) | -3.09[3] |
| Details | |
| Mass | 4.5[4] M☉ |
| Radius | 35.1[3] R☉ |
| Luminosity | 1,186[5] L☉ |
| Surface gravity (log g) | 1.5[1] cgs |
| Temperature | 6,151[5] K |
| Metallicity | 0.1[3] |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
RT Aurigae (RT Aur) is a star in the constellation Auriga.
RT Aurigae is an F-type yellow supergiant with a mean apparent magnitude of +5.75. It is approximately 1561 light-years from Earth. It is classified as a Cepheid variable star and its brightness varies from magnitude +5.00 to +5.82 with a period of 3.73 days.[3]
References
- ↑ 1.0 1.1 1.2 Soubiran, C.; Le Campion, J. -F.; Cayrel De Strobel, G.; Caillo, A. (2010). "The PASTEL catalogue of stellar parameters". Astronomy and Astrophysics 515: A111. Bibcode:2010A&A...515A.111S. doi:10.1051/0004-6361/201014247.
- ↑ 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.
- ↑ 3.0 3.1 3.2 3.3 3.4 Groenewegen, M. A. T. (2013). "Baade-Wesselink distances to Galactic and Magellanic Cloud Cepheids and the effect of metallicity". Astronomy & Astrophysics 550: A70. doi:10.1051/0004-6361/201220446.
- ↑ Turner, D. G.; Bryukhanov, I. S.; Balyuk, I. I.; Gain, A. M.; Grabovsky, R. A.; Grigorenko, V. D.; Klochko, I. V.; Kosa‐Kiss, A.; Kosinsky, A. S.; Kushmar, I. J.; Mamedov, V. T.; Narkevich, N. A.; Pogosyants, A. J.; Semenyuta, A. S.; Sergey, I. M.; Schukin, V. V.; Strigelsky, J. B.; Tamello, V. G.; Lane, D. J.; Majaess, D. J. (2007). "The Period Changes of the Cepheid RT Aurigae". Publications of the Astronomical Society of the Pacific 119 (861): 1247. doi:10.1086/523656.
- ↑ 5.0 5.1 Turner, D. G. (2010). "The PL calibration for Milky Way Cepheids and its implications for the distance scale". Astrophysics and Space Science 326 (2): 219. doi:10.1007/s10509-009-0258-5.
External links
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