| Observation data EpochJ2000.0 EquinoxJ2000.0 | |
|---|---|
| Constellation | Puppis[1] |
| Right ascension | 06h 44m 30.61336s[2] |
| Declination | −42° 45′ 42.6668″[2] |
| Apparent magnitude (V) | 12.52[3] |
| Characteristics | |
| Evolutionary stage | main sequence[4] |
| Spectral type | K1V[4] |
| Astrometry | |
| Radial velocity (Rv) | +5.29±0.52[2] km/s |
| Proper motion (μ) | RA: −8.917mas/yr[2] Dec.: −87.711mas/yr[2] |
| Parallax (π) | 4.8598±0.0086 mas[2] |
| Distance | 671 ± 1 ly (205.8 ± 0.4 pc) |
| Details[5] | |
| Mass | 0.78+0.13 −0.12 M☉ |
| Radius | 0.765+0.033 −0.049 R☉ |
| Surface gravity (log g) | 4.4±0.2[4] cgs |
| Temperature | 5,150±100 K |
| Metallicity[Fe/H] | −0.05±0.13 dex |
| Rotational velocity (v sin i) | 2.2±0.3 km/s |
| Age | 6.2+5.6 −2.5 Gyr |
| Other designations | |
| TOI-477,TIC 170102285,WASP-23,GSC 07635-01376[3] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
WASP-23 is aK1V-type main sequencestar located 671light-years fromEarth in theconstellation ofPuppis. It has a mass of 0.84 solar masses and a radius of 0.88 solar radii. It is around 6.2 billion years old and has an effective temperature of 5046 Kelvin.[6]
There is only one knownexoplanet orbiting this star namedWASP-23b that was discovered by thetransit method in the year 2010 by Triaudet al. It is ahot Jupiter with similar mass and radius toJupiter.[4]
| Companion (in order from star) | Mass | Semimajor axis (AU) | Orbital period (days) | Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.879+0.095 −0.10 MJ | 0.0370+0.0019 −0.0022 | 2.9444300(11) | <0.065 | 88.39+0.79 −0.45° | 0.962+0.047 −0.056 RJ |
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