Jump to content

Psi3 Aurigae

From Wikipedia, the free encyclopedia
(Redirected from Ψ3 Aurigae)
Psi3 Aurigae
Location of ψ3 Aurigae (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Auriga
Right ascension 06h 38m 49.18001s[1]
Declination +39° 54′ 09.2150″[1]
Apparent magnitude (V) +5.20[2]
Characteristics
Spectral type B8 III[3]
U−B color index −0.38[4]
B−V color index −0.07[4]
Astrometry
Radial velocity (Rv)+9.0±4.2[5] km/s
Proper motion (μ) RA: +27.19[1] mas/yr
Dec.: +16.82[1] mas/yr
Parallax (π)6.34 ± 0.20 mas[1]
Distance510 ± 20 ly
(158 ± 5 pc)
Absolute magnitude (MV)−2.71[6]
Details
Radius4.2[7] R
Luminosity1,624[6] L
Temperature13,361±83[8] K
Rotational velocity (v sin i)118[8] km/s
Other designations
ψ3 Aur, 52 Aur, BD+40° 1665, HD 47100, HIP 31789, HR 2420, SAO 59319[9]
Database references
SIMBADdata

Psi3 Aurigae, Latinized from ψ3 Aurigae, is a single,[10] blue-white hued star in the northern constellation of Auriga. It is dimly visible to the naked eye with an apparent visual magnitude of +5.20.[2] Based upon an annual parallax shift of 2.38 ± 0.39 mas as seen from the Earth,[1] it is approximately 1,370 light-years (420 parsecs) distant from the Sun.

This is a B-type giant star with a stellar classification of B8 III.[3] It has about 4.2[7] and is spinning with a relatively high projected rotational velocity of 118 km/s.[8] The star is radiating 1,624[6] times the Sun's luminosity from its photosphere at an effective temperature of 13,361 K.[8]

See also

[edit]

References

[edit]
  1. ^ a b c d e f van Leeuwen, F. (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.
  2. ^ 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.
  3. ^ 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.
  4. ^ 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.
  5. ^ de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics, 546: 14, arXiv:1208.3048, Bibcode:2012A&A...546A..61D, doi:10.1051/0004-6361/201219219, S2CID 59451347, A61.
  6. ^ a b c 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, S2CID 119257644.
  7. ^ 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.
  8. ^ 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.
  9. ^ "tet Hyi". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-10-13.
  10. ^ 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.
[edit]