PU Aurigae

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PU Aurigae
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 05h 18m 15.69826s[1]
Declination +42° 47′ 31.6133″[1]
Apparent magnitude (V) 5.55[2]
Characteristics
Spectral type M4 III[2]
B−V color index 1.492±0.012[2]
Variable type Lb[3]
Astrometry
Radial velocity (Rv)−38.41±1.02[2] km/s
Proper motion (μ) RA: +17.98[4] mas/yr
Dec.: −30.61[4] mas/yr
Parallax (π)5.7462 ± 0.2309 mas[1]
Distance570 ± 20 ly
(174 ± 7 pc)
Absolute magnitude (MV)−0.63[2]
Details
Luminosity1,523[5] L☉
Temperature3,482[5] K
Other designations
PU Aurigae, BD+42° 1239, HD 34269, HIP 24738, HR 1722, SAO 40214[6]
Database references
SIMBADdata

PU Aurigae is an irregular variable star located in the constellation Auriga. A red giant, it varies by 0.1 magnitude around magnitude 5.64.[7] Located around 560 light-years distant, it shines with a luminosity approximately 1,523 times that of the Sun and has a surface temperature of 3,482 K.[5]

References

  1. ^ a b c 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.
  2. ^ a b c d e 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.
  3. ^ Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/gcvs. Originally Published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
  4. ^ a b van Leeuwen, F. (November 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.
  5. ^ 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.
  6. ^ "HD 34269". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 22 August 2018.
  7. ^ Watson, Christopher (4 January 2010). "PU Aurigae". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 17 June 2015.


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