Pi1 Pegasi
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Pegasus |
| Right ascension | 22h 09m 13.633s[1] |
| Declination | +33° 10′ 20.41″ [1] |
| Apparent magnitude (V) | +5.595[2] |
| Characteristics | |
| Spectral type | G6 III |
| Astrometry | |
| Radial velocity (Rv) | +8.50 ± 0.1 km/s |
| Proper motion (μ) | RA: -61.14 ± 0.32[1] mas/yr Dec.: –66.84 ± 0.32[1] mas/yr |
| Parallax (π) | 11.30 ± 0.30[1] mas |
| Distance | 289 ± 8 ly (88 ± 2 pc) |
| Absolute magnitude (MV) | 0.84[3] |
| Details | |
| Mass | 1.92[3] M☉ |
| Luminosity | 201.6[3] L☉ |
| Temperature | 4793[3] K |
| Metallicity [Fe/H] | -0.22[3] dex |
| Other designations | |
Pi1 Pegasi (π1 Peg, π1 Pegasi) is a star in the constellation Pegasus. Of apparent magnitude 5.59, its brightness is dimmer by 0.05 magnitude due to interstellar extinction. It is a yellow giant 1.92 times as massive as the Sun and 201.6 times as luminous.[3]
References
- 1 2 3 4 5 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
- 1 2 SIMBAD, Pi1 Pegasi (accessed 16 March 2016)
- 1 2 3 4 5 6 Takeda, Yoichi; Sato, Bun'ei; Murata, Daisuke (August 2008), "Stellar Parameters and Elemental Abundances of Late-G Giants", Publications of the Astronomical Society of Japan 60 (4): 781–802, arXiv:0805.2434, Bibcode:2008PASJ...60..781T, doi:10.1093/pasj/60.4.781
| ||||||||||||||||||||||||||||||||||
This article is issued from Wikipedia - version of the Wednesday, April 20, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.