HAT-P-9
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 07h 20m 40.4565s |
| Declination | +37° 08′ 26.343″ |
| Apparent magnitude (V) | 12.34 ± 0.27 |
| Characteristics | |
| Spectral type | F |
| Apparent magnitude (B) | 12.35 ± 0.23 |
| Apparent magnitude (V) | 12.34 ± 0.27 |
| Apparent magnitude (J) | 11.274 ± 0.022 |
| Apparent magnitude (H) | 11.04 ± 0.03 |
| Apparent magnitude (K) | 11.015 ± 0.021 |
| Variable type | planetary transit |
| Astrometry | |
| Radial velocity (Rv) | 20.69±2.27 km/s |
| Proper motion (μ) | RA: −9.796 mas/yr Dec.: −13.029 mas/yr |
| Parallax (π) | 2.1626±0.0140 mas |
| Distance | 1,508 ± 10 ly (462 ± 3 pc) |
| Details | |
| Mass | 1.281+0.057 −0.056 M☉ |
| Radius | 1.338+0.065 −0.060 R☉ |
| Luminosity | 2.62+0.26 −0.23 L☉ |
| Surface gravity (log g) | 4.293+0.033 −0.035 cgs |
| Temperature | 6253 ± 84 K |
| Metallicity [Fe/H] | 0.16 ± 0.09 dex |
| Rotational velocity (v sin i) | 13.4 ± 1.4 km/s |
| Age | 1.6+1.8 −1.4 Gyr |
| Other designations | |
| Tevel, TOI-1731, TIC 371234684, TYC 2463-281-1, GSC 02463-00281, 2MASS J07204044+3708263, HAT-P-9 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
HAT-P-9 is a magnitude 12 F-type star approximately 1500 light-years away in the constellation Auriga. A search for a binary companion star using adaptive optics at the MMT Observatory was negative.