Astronomy:V433 Aurigae

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Short description: Star in the constellation Auriga
V433 Aurigae
V433AurLightCurve.png
A light curve for V433 Aurigae, plotted from Hipparcos data[1]
Observation data
Equinox J2000.0]] (ICRS)
Constellation Auriga
Right ascension  05h 39m 18.3132s[2]
Declination +29° 12′ 54.788″[2]
Apparent magnitude (V) 6.02–6.06[3]
Characteristics
Spectral type B2IV-V[4]
U−B color index −0.5
B−V color index +0.16
Variable type SPB
Astrometry
Radial velocity (Rv)22.90 ± 1.9[5] km/s
Proper motion (μ) RA: −0.82[6] mas/yr
Dec.: −7.11[6] mas/yr
Parallax (π)1.0114 ± 0.1708[2] mas
Distanceapprox. 3,200 ly
(approx. 1,000 pc)
Details
Luminosity322[7] L
Temperature7400[7] K
Other designations
BD+29° 947, HD 37367, HIP 26606, HR 1924, SAO 77354[4]
Database references
SIMBADdata

V433 Aurigae is a variable star in the constellation Auriga. It is a slowly pulsating B star (SPB) that ranges from apparent magnitude 6.02 to 6.06 over 4.6 days.[3] Using a Hipparcos-derived distance of about 1,060 light-years (324 pc), it shines with a luminosity approximately 322 times that of the Sun and has a surface temperature of 7400 K.[7] However, measurements by Gaia indicate a much higher distance of 3,200 light-years (980 pc).[2]

References

  1. "Hipparcos Tools Interactive Data Access". ESA. https://www.cosmos.esa.int/web/hipparcos/interactive-data-access. 
  2. Jump up to: 2.0 2.1 2.2 2.3 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. Bibcode2018A&A...616A...1G.  3442900661273401600 Gaia DR2 record for this source at VizieR.
  3. Jump up to: 3.0 3.1 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. 
  4. Jump up to: 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. 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. Bibcode2006AstL...32..759G. 
  6. Jump up to: 6.0 6.1 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode2007A&A...474..653V. 
  7. Jump up to: 7.0 7.1 7.2 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. doi:10.1111/j.1365-2966.2012.21873.x. Bibcode2012MNRAS.427..343M.