Psi4 Aurigae

For other star systems with this Bayer designation, see Psi Aurigae.
ψ4 Aurigae
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 06h 43m 04.97107s[1]
Declination +44° 31′ 28.0220″[1]
Apparent magnitude (V) +5.02[2]
Distance324 ± 11 ly
(99 ± 3[1] pc)
Spectral typeK5 III[3]
Other designations
55 Aurigae, BD+44 1518, FK5 2517, HD 47914, HIP 32173, HR 2459, SAO 41288.[4]

Psi4 Aurigae (ψ4 Aur, ψ4 Aurigae) is the Bayer designation for a star in the northern constellation of Auriga. It is a faint star but visible to the naked eye with an apparent visual magnitude of +5.02.[2] With an annual parallax shift of 10.08 ± 0.33 mas,[1] it is approximately 324 light-years (99 parsecs) distant from Earth. This is a K-type giant star with a stellar classification of K5 III.[3]

References

  1. 1 2 3 4 van Leeuwen, Floor (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752v1Freely accessible, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357. Note: see VizieR catalogue I/311.
  2. 1 2 Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99), Bibcode:1966CoLPL...4...99J
  3. 1 2 Roman, Nancy G. (July 1952), "The Spectra of the Bright Stars of Types F5-K5", Astrophysical Journal, 116: 122, Bibcode:1952ApJ...116..122R, doi:10.1086/145598.
  4. ↑ "50 Aur -- Star in double system", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-08-24.
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