HAT-P-12
HAT-P-12 is a magnitude 13 low-metallicity K dwarf star approximately 463 light years away in the constellation Canes Venatici, which hosts one known exoplanet.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Canes Venatici |
| Right ascension | 13h 57m 33.4669s |
| Declination | +43° 29′ 36.602″ |
| Apparent magnitude (V) | 12.84 |
| Characteristics | |
| Spectral type | K5 |
| Apparent magnitude (J) | 10.794 ±0.023 |
| Apparent magnitude (H) | 10.236 ±0.022 |
| Apparent magnitude (K) | 10.108 ±0.016 |
| Variable type | planetary transit |
| Astrometry | |
| Radial velocity (Rv) | −40.4589±0.0023 km/s |
| Proper motion (μ) | RA: −134.793(8) mas/yr Dec.: −44.229(11) mas/yr |
| Parallax (π) | 7.0448 ± 0.0105 mas |
| Distance | 463.0 ± 0.7 ly (141.9 ± 0.2 pc) |
| Absolute magnitude (MV) | 12.35 ± 0.23 |
| Details | |
| Mass | 0.719±0.016 M☉ |
| Radius | 0.7084±0.0095 R☉ |
| Luminosity | 0.21+0.02 −0.01 L☉ |
| Surface gravity (log g) | 4.594±0.013 cgs |
| Temperature | 4710±49 K |
| Metallicity [Fe/H] | −0.24+0.055 −0.062 dex |
| Rotation | 0.5 ± 0.4 kms−1 |
| Age | 2.5 ± 2.0 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
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