V433 Aurigae

V433 Aurigae
	; A light curve for V433 Aurigae, plotted from Hipparcos data
Observation data; Epoch J2000 Equinox J2000
Constellation	Auriga
Right ascension	05h 39m 18.3132s
Declination	+29° 12′ 54.788″
Apparent magnitude (V)	6.02–6.06
Characteristics
Spectral type	B2IV-V
U−B color index	−0.5
B−V color index	+0.16
Variable type	SPB
Astrometry
Radial velocity (Rv)	22.90 ± 1.9 km/s
Proper motion (μ)	RA: −0.82 mas/yr ; Dec.: −7.11 mas/yr
Parallax (π)	1.0114 ± 0.1708 mas
Distance	approx. 3,200 ly ; (approx. 1,000 pc)
Details
Luminosity	322 L☉
Temperature	7400 K
Other designations
	BD+29° 947, HD 37367, HIP 26606, HR 1924, SAO 77354
Database references
SIMBAD	data

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] It is faintly visible to the naked eye under very good observing conditions. 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]

V433 Aurigae was discovered to be a variable star when the Hipparcos data was analyzed. It was given its variable star designation in 1999.^[8]

References

^ "Hipparcos Tools Interactive Data Access". Hipparcos. ESA. Retrieved 8 December 2021.
^ ^a ^b ^c ^d 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 Watson, Christopher (4 January 2010). "V433 Aurigae". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 4 August 2015.
^ ^a ^b "V433 Aur". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-03-21.
^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
^ ^a ^b van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
^ ^a ^b ^c 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.
^ 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" (PDF). Information Bulletin on Variable Stars. 4659: 1–27. Bibcode:1999IBVS.4659....1K. Retrieved 2 December 2024.

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[HipDataAccess-1] "Hipparcos Tools Interactive Data Access". Hipparcos. ESA. Retrieved 8 December 2021.

[GaiaDR2-2] 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.

[AAVSOV433-3] Watson, Christopher (4 January 2010). "V433 Aurigae". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 4 August 2015.

[SIMBAD-4] "V433 Aur". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-03-21.

[Gontcharov-5] Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.

[HIP-6] van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.

[Mcdonald-7] 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.

[Kazarovets1999-8] 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" (PDF). Information Bulletin on Variable Stars. 4659: 1–27. Bibcode:1999IBVS.4659....1K. Retrieved 2 December 2024.

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Observation data Epoch J2000 Equinox J2000
A light curve for V433 Aurigae, plotted from Hipparcos data^[1]
Constellation	Auriga
Right ascension	05^h 39^m 18.3132^s^[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 (R_v)	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 mas^[2]
Distance	approx. 3,200 ly (approx. 1,000 pc)

Details

Luminosity	322^[7] `L`_☉
Temperature	7400^[7] K

Other designations
BD+29° 947, HD 37367, HIP 26606, HR 1924, SAO 77354^[4]
Database references
SIMBAD	data