HAT-P-16
HAT-P-16 is a F-type main-sequence star about 740 light-years away. The star has a concentration of heavy elements slightly higher than solar abundance, and low starspot activity. The survey in 2015 have failed to find any stellar companions to it. The spectral analysis in 2014 have discovered the HAT-P-16 has a carbon to oxygen molar ratio of 0.58±0.08, close to Sun`s value of 0.55.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 00h 38m 17.5584s |
| Declination | +42° 27′ 47.2169″ |
| Apparent magnitude (V) | 10.91 |
| Characteristics | |
| Spectral type | F8V |
| Astrometry | |
| Radial velocity (Rv) | -15.51 km/s |
| Proper motion (μ) | RA: -21.564 mas/yr Dec.: -4.588 mas/yr |
| Parallax (π) | 4.3859 ± 0.0847 mas |
| Distance | 740 ± 10 ly (228 ± 4 pc) |
| Details | |
| Mass | 1.218±0.039 M☉ |
| Radius | 1.237±0.054 R☉ |
| Luminosity | 1.97±0.22 L☉ |
| Surface gravity (log g) | 4.34±0.03 cgs |
| Temperature | 6140±72 K |
| Metallicity | 0.12±0.08 |
| Rotational velocity (v sin i) | 3.5±0.5 km/s |
| Age | 2.0±0.8 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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