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V394 Aurigae

Location of V394 Aurigae (circled)
Observation data Epoch J2000      Equinox J2000
Constellation	Auriga
Right ascension	06 06 22.44529
Declination	+29° 30′ 44.6832″
Apparent magnitude (V)	6.01 - 6.11
Characteristics
Spectral type	M3II+F7V
U−B color index	1.94
B−V color index	1.73
Variable type	Semi-regular
Astrometry
Radial velocity (Rv)	-36.40 ± 0.18 km/s
Proper motion (μ)	RA: 11.503 mas/yr Dec.: −5.126 mas/yr
Parallax (π)	3.7146 ± 0.0756 mas
Distance	880 ± 20 ly (269 ± 5 pc)
Details
Luminosity	1075 L☉
Temperature	3589 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, 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 1075 times that of the Sun and has a surface temperature of 3589 K.

In 1991, Leroy F. Snyder discovered that the star, then called HR 2146, is a variable star. It was given its variable star designation, V394 Aurigae, in 1993. Koen and Eyer found that the star's brightness, as seen by Hipparcos, varies with a period of 3.9 days.

It is a double star: the secondary, designated V394 Aurigae B, is an eleventh-magnitude star with a separation of 10 arcseconds.

References

1. ^ 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.
2. ^ Watson, Christopher (4 January 2010). "V394 Aurigae". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 14 August 2015.
3. 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.
4. ^ McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–57. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. S2CID 118665352.
5. "/ftp/cats/more/HIP/cdroms/cats". Centre de Données astronomiques de Strasbourg. Strasbourg astronomical Data Center. Retrieved 15 October 2022.
6. 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.
7. 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.
8. 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.
9. 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

v t e Constellation of Auriga
Auriga in Chinese astronomy List of stars in Auriga
Stars	Bayer α (Capella) β (Menkalinan) γ (Elnath) δ ε (Almaaz) ζ (Saclateni) η (Haedus) θ (Mahasim) ι (Hassaleh) κ λ (Alhurr) μ ν ξ ο π ρ σ τ υ φ χ ψ ψ ψ ψ ψ ψ ψ ψ ψ ω Flamsteed 2 5 6 9 12 14 16 18 19 22 26 28 36 38 39 40 41 42 43 45 47 49 51 53 54 59 60 62 63 64 65 66 35 Cam Variable R T RT (48) RW SU UU WW AB AE AR (17) EO IQ IU LY MZ NO NY PU QZ V352 V361 V394 V420 V433 V538 HR 1558 1615 1738 1752 1794 1795 1822 1825 1866 1884 1938 1945 2028 2096 2137 HD 33203 33463 35619 43691 45350 (Lucilinburhuc) 49674 (Nervia) Other Gliese 268 HAT-P-9 (Tevel) KELT-2 MWC 480 SGR 0501+4516 UGPS J0521+3640 WASP-12
Exoplanets HAT-P-9b (Alef) HD 40979 b HD 43691 b HD 45350 b HD 49674 b KELT-2Ab WASP-12b
Star clusters	NGC 1664 1893 1907 1931 2240 2281 Other Messier 36 Messier 37 Messier 38 Palomar 2
Nebulae	NGC 1985 2242 Other IC 405 IC 2149 Westbrook Nebula
Galaxies 3C 147 4C +41.17 DA 193 MCG +08-11-011
Galaxy clusters MACS J0717.5+3745
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