Pi2 Pegasi
—
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Pegasus |
| Right ascension | 22h 09m 59.24371s[1] |
| Declination | +33° 10′ 41.5976″ [1] |
| Apparent magnitude (V) | +4.29[2] |
| Characteristics | |
| Spectral type | F5 III |
| Astrometry | |
| Radial velocity (Rv) | +5.10 ± 0.9 km/s |
| Proper motion (μ) | RA: -12.87 ± 0.12[1] mas/yr Dec.: –18.95 ± 0.16[1] mas/yr |
| Parallax (π) | 12.40 ± 0.17[1] mas |
| Distance | 263 ± 4 ly (81 ± 1 pc) |
| Other designations | |
Pi2 Pegasi (π2 Peg, π2 Pegasi) is a star in the constellation Pegasus. It is a yellow-white subgiant that is 2.5 times as massive as the Sun and has expanded to 8 times the Sun's radius and brightened to 92 times the Sun's luminosity.[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, Pi2 Pegasi (accessed 16 March 2016)
- ↑ Kaler, James B. "Pi Pegasi". Stars. University of Illinois. Retrieved 16 March 2016.
This article is issued from Wikipedia - version of the 4/19/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.