Psi3 Aurigae

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For other stars with this Bayer designation, see ψ Aurigae.
Psi3 Aurigae
Location of ψ3 Aurigae (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Auriga[1]
Right ascension 06h 38m 49.180s[2]
Declination +39° 54′ 09.21″[2]
Apparent magnitude (V) +5.20[3]
Characteristics
Spectral type B8 III[4]
U−B color index −0.38[5]
B−V color index −0.07[5]
Astrometry
Radial velocity (Rv)−1.22±4.04[2] km/s
Proper motion (μ) RA: −7.718 mas/yr[2]
Dec.: −11.191 mas/yr[2]
Parallax (π)3.6617±0.1113 mas[2]
Distance890 ± 30 ly
(273 ± 8 pc)
Absolute magnitude (MV)−2.71[1]
Details
Radius4.2[6] R☉
Luminosity1,624[1] L☉
Temperature13,361±83[7] K
Rotational velocity (v sin i)118[7] km/s
Other designations
ψ3 Aur, 52 Aur, BD+40°1665, GC 8655, HD 47100, HIP 31789, HR 2420, SAO 59319, PPM 71895[8]
Database references
SIMBADdata

Psi3 Aurigae is a single,[9] blue-white hued star in the northern constellation of Auriga. Its name is a Bayer designation that is Latinized from ψ3 Aurigae, and abbreviated Psi3 Aur or ψ3 Aur. This star is dimly visible to the naked eye with an apparent visual magnitude of +5.20.[3] Based upon an annual parallax shift of 3.66 mas as seen from the Earth,[2] it is approximately 890 light-years (270 pc) distant from the Sun.

This is a B-type giant star with a stellar classification of B8 III.[4] It has about 4.2[6] times the radius of the Sun and is spinning with a relatively high projected rotational velocity of 118 km/s.[7] The star is radiating 1,624[1] times the Sun's luminosity from its photosphere at an effective temperature of 13,361 K.[7]

References

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  1. ^ a b c d Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015. XHIP record for this object at VizieR.
  2. ^ a b c d e f Vallenari, A.; et al. (Gaia collaboration) (2023), "Gaia Data Release 3. Summary of the content and survey properties", Astronomy and Astrophysics, 674: A1, arXiv:2208.00211, Bibcode:2023A&A...674A...1G, doi:10.1051/0004-6361/202243940, S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. ^ a b Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
  4. ^ a b Cowley, A. (November 1972), "Spectral classification of the bright B8 stars", Astronomical Journal, 77: 750–755, Bibcode:1972AJ.....77..750C, doi:10.1086/111348.
  5. ^ a b Crawford, D. L. (February 1963), "U, b, v, and Hβ Photometry for the Bright B8- and B9-TYPE Stars", Astrophysical Journal, 137: 530, Bibcode:1963ApJ...137..530C, doi:10.1086/147526.
  6. ^ a b Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics, 367 (Third ed.): 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451, S2CID 425754.
  7. ^ a b c d Paunzen, E.; et al. (2005), "An empirical temperature calibration for the Δa photometric system . I. The B-type stars", Astronomy and Astrophysics, 444 (3): 941–946, arXiv:astro-ph/0509049, Bibcode:2005A&A...444..941P, doi:10.1051/0004-6361:20053546, S2CID 119436374.
  8. ^ "tet Hyi". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-10-13.
  9. ^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
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