PU Aurigae

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PU Aurigae
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 05h 18m 15.6971s
Declination +42° 47′ 31.6″
Apparent magnitude (V) 5.64 (5.55 - 5.78[1])
Characteristics
Spectral type M4III
U−B color index 1.62
B−V color index 1.65
Variable type Lb[1]
Astrometry
Radial velocity (Rv) -38.41 ± 1.02 km/s
Proper motion (μ) RA: 17.98 ± 0.48 mas/yr
Dec.: -30.61 ± 0.22 mas/yr
Parallax (π) 5.79 ± 0.33 mas
Distance 560 ± 30 ly
(173 ± 10 pc)
Details
Luminosity 1523 L
Temperature 3482 K
Other designations
BD+42° 1239, HD 34269, HIP 24738, HR 1722, SAO 40214.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

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.[2] Located around 560 light-years distant, it shines with a luminosity approximately 1523 times that of the Sun and has a surface temperature of 3482 K.[3]


References[edit]

  1. ^ a b 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. 
  2. ^ Watson, Christopher (4 January 2010). "PU Aurigae". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 17 June 2015. 
  3. ^ 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. Bibcode:2012MNRAS.427..343M. arXiv:1208.2037Freely accessible. doi:10.1111/j.1365-2966.2012.21873.x.