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 | |
| 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
- 1 2 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.
- ↑ Watson, Christopher (4 January 2010). "PU Aurigae". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 17 June 2015.
- ↑ 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.
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