9 Pegasi
From Infogalactic: the planetary knowledge core
 Location of 9 Peg (circled) |
|
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Pegasus |
| Right ascension | 21h 44m 30.69581s[1] |
| Declination | +17° 21′ 00.0571″[1] |
| Apparent magnitude (V) | 4.35[2] |
| Characteristics | |
| Spectral type | G5Ib[3] |
| U−B color index | +0.96[2] |
| B−V color index | +1.17[2] |
| Astrometry | |
| Radial velocity (Rv) | −23.11[4] km/s |
| Proper motion (μ) | RA: 8.66[1] mas/yr Dec.: −11.33[1] mas/yr |
| Parallax (π) | 3.52 ± 0.22[1] mas |
| Distance | 930 ± 60 ly (280 ± 20 pc) |
| Absolute magnitude (MV) | ~−3[5] |
| Details[3] | |
| Mass | 7.1 M☉ |
| Radius | 140[6] R☉ |
| Luminosity | 1,950[7] L☉ |
| Surface gravity (log g) | 1.58 cgs |
| Temperature | 4,910 K |
| Metallicity [Fe/H] | −0.04[5] dex |
| Rotational velocity (v sin i) | 10[3] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
9 Pegasi (9 Peg) is a star in the constellation Pegasus. Its apparent magnitude is 4.35. It has been reported to be variable but is not listed in any catalogues of variable stars.[5]
References
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