V394 Aurigae
  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 06h 06m 22.44529s[1] |
| Declination | +29° 30′ 44.6832″[1] |
| Apparent magnitude (V) | 6.01 - 6.11[2] |
| Characteristics | |
| Evolutionary stage | AGB[3] |
| Spectral type | M3II[4] |
| U−B color index | 1.94 |
| B−V color index | 1.73 |
| Variable type | Semi-regular[2] |
| Astrometry | |
| Radial velocity (Rv) | −36.40±0.18[5] km/s |
| Proper motion (μ) | RA: 11.503[1] mas/yr Dec.: −5.126[1] mas/yr |
| Parallax (π) | 3.7146±0.0756 mas[1] |
| Distance | 880 ± 20 ly (269 ± 5 pc) |
| Details | |
| Radius | 85[6] R☉ |
| Luminosity | 985[1] L☉ |
| Surface gravity (log g) | 0.78[7] cgs |
| Temperature | 3,639[6] K |
| Other designations | |
| DO 11899, HIC 28930, PPM Star Catalogue 95388, STT 129, GC 7725, HIP 28930, SAO 77958, ADS 4673, GCRV 3829, HR 2146, AG+29° 663, IDS 06000+2931, TYC 1876-1774-1, BD+29° 1112, IRAS 06031+2931, UBV M 11751, CCDM J06064+2931, GSC 01876-01774, IRC +30137, YZ 29 2943, CSI+29 1112 1, HD 41429, 2MASS J06062243+2930445. | |
| Database references | |
| SIMBAD | data |
V394 Aurigae is a semi-regular variable star in the constellation Auriga. Its brightness varies between magnitudes 6.01 and 6.11,[2] so it is faintly visible to the naked eye under ideal observing conditions. Located around 730 light-years distant, V394 Aurigae shines with a luminosity approximately 985 times that of the Sun[1] and has a surface temperature of 3,639 K.[6]
In 1991, Leroy F. Snyder discovered that the star, then called HR 2146, is a variable star.[9] It was given its variable star designation, V394 Aurigae, in 1993.[10] Koen and Eyer found that the star's brightness, as seen by Hipparcos, varies with a period of 3.9 days.[11]
It is a double star: the secondary, designated V394 Aurigae B, is an eleventh-magnitude F7V star[12] with a separation of 10 arcseconds.[13]
References
[edit]- ^ a b c d e f g 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.
- ^ a b c Watson, Christopher (4 January 2010). "V394 Aurigae". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 14 August 2015.
- ^ Eggen, Olin J. (1992). "Asymptotic Giant Branch Stars Near the Sun". The Astronomical Journal. 104: 275. Bibcode:1992AJ....104..275E. doi:10.1086/116239.
- ^ Abt, H. A. (1981). "Visual multiples. VII. MK classifications". The Astrophysical Journal Supplement Series. 45: 437. Bibcode:1981ApJS...45..437A. doi:10.1086/190719.
- ^ Gaia Collaboration (2018-04-01). "VizieR Online Data Catalog: Gaia DR2 (Gaia Collaboration, 2018)". VizieR Online Data Catalog. 1345. Bibcode:2018yCat.1345....0G. doi:10.26093/cds/vizier.1345.
- ^ a b c Stassun, Keivan G.; et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467.
- ^ Poggio, E.; Recio-Blanco, A.; Palicio, P. A.; Re Fiorentin, P.; De Laverny, P.; Drimmel, R.; Kordopatis, G.; Lattanzi, M. G.; Schultheis, M.; Spagna, A.; Spitoni, E. (2022). "The chemical signature of the Galactic spiral arms revealed by Gaia DR3". Astronomy and Astrophysics. 666: L4. arXiv:2206.14849. Bibcode:2022A&A...666L...4P. doi:10.1051/0004-6361/202244361.
- ^ "/ftp/cats/more/HIP/cdroms/cats". Centre de Données astronomiques de Strasbourg. Strasbourg astronomical Data Center. Retrieved 15 October 2022.
- ^ Snyder, L. F. (July 1991). "HR 2146 A New Variable in Auriga" (PDF). Information Bulletin on Variable Stars. 3632: 1. Bibcode:1991IBVS.3632....1S. Retrieved 1 December 2024.
- ^ Kazarovets, E. V.; Samus, N. N.; Goranskij, V. P. (February 1993). "The 71st Name-List of Variable Stars" (PDF). Information Bulletin on Variable Stars. 3840: 1–27. Bibcode:1993IBVS.3840....1K. Retrieved 1 December 2024.
- ^ Koen, Chris; Eyer, Laurent (March 2002). "New periodic variables from the Hipparcos epoch photometry". Monthly Notices of the Royal Astronomical Society. 331 (1): 45–59. arXiv:astro-ph/0112194. Bibcode:2002MNRAS.331...45K. doi:10.1046/j.1365-8711.2002.05150.x. S2CID 10505995.
- ^ Wright, Candace O.; Egan, Michael P.; Kraemer, Kathleen E.; Price, Stephan D. (2003). "The Tycho-2 Spectral Type Catalog". The Astronomical Journal. 125 (1): 359. Bibcode:2003AJ....125..359W. doi:10.1086/345511.
- ^ Dommanget, J.; Nys, O. (2002). "CCDM (Catalog of Components of Double & Multiple stars) (Dommanget+ 2002)". VizieR On-line Data Catalog: I/274. Originally Published in: Observations et Travaux 54. 1274. Bibcode:2002yCat.1274....0D. Vizier catalog entry
