Omicron Pegasi
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Pegasus |
| Right ascension | 22h 41m 45.40961s[1] |
| Declination | +29° 18′ 27.4918″[1] |
| Apparent magnitude (V) | +4.79[2] |
| Characteristics | |
| Spectral type | A1 IV |
| Astrometry | |
| Radial velocity (Rv) | +8.50 ± 0.1 km/s |
| Proper motion (μ) | RA: -0.06 ± 0.42[1] mas/yr Dec.: –21.46 ± 0.49[1] mas/yr |
| Parallax (π) | 10.92 ± 0.67 mas[1] |
| Distance | 300 ± 20 ly (92 ± 6 pc) |
| Absolute magnitude (MV) | -0.01[3] |
| Other designations | |
Omicron Pegasi (ο Peg) is a star in the constellation Pegasus. Its apparent magnitude is 4.79. Located 300 ± 20 light-years distant,[1] it is a white subgiant of spectral class A1IV, which has begun to cool, expand and brighten off the main sequence.[3]
References
- ^ a b c d e f 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
- ^ a b SIMBAD, Omicron Pegasi (accessed 12 January 2013)
- ^ a b Gray, David F. (2014). "Precise Rotation Rates for Five Slowly Rotating a Stars". The Astronomical Journal. 147 (4): 13. Bibcode:2014AJ....147...81G. doi:10.1088/0004-6256/147/4/81. 81.
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