WASP-12
WASP-12 is a magnitude 11 yellow dwarf star located approximately 1410 light-years away in the constellation Auriga. WASP-12 has a mass and radius similar to the Sun and is known for being orbited by a planet that is extremely hot and has a retrograde orbit around WASP-12. WASP-12 forms a triple star system with two red dwarf companions. Both of them have spectral types of M3V and are only 38% and 37% as massive as the Sun, respectively.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Auriga |
| Right ascension | 06h 30m 32.7967s |
| Declination | +29° 40′ 20.2663″ |
| Apparent magnitude (V) | 11.560±0.068 |
| Characteristics | |
| Spectral type | G0V or F |
| Apparent magnitude (B) | 12.138±0.019 |
| Apparent magnitude (R) | ~11.6 |
| Apparent magnitude (J) | 10.477±0.021 |
| Apparent magnitude (H) | 10.228±0.022 |
| Apparent magnitude (K) | 10.188±0.020 |
| Astrometry | |
| Proper motion (μ) | RA: −1.580±0.068 mas/yr Dec.: −6.958±0.058 mas/yr |
| Parallax (π) | 2.3122 ± 0.0325 mas |
| Distance | 1,410 ± 20 ly (432 ± 6 pc) |
| Details | |
| Mass | 1.434+0.11 −0.09 M☉ |
| Radius | 1.657+0.046 −0.044 R☉ |
| Luminosity | 4.05+0.54 −0.53 L☉ |
| Temperature | 6360+130 −140 K |
| Metallicity | +0.33+0.14 −0.17 |
| Other designations | |
TYC 1891-1178-1, 2MASS J06303279+2940202, UCAC2 42216354, Gaia DR2 3435282862461427072 | |
| Database references | |
| SIMBAD | data |
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