WASP-16
Star in constellation of Virgo
From Wikipedia, the free encyclopedia
WASP-16 is a magnitude 11 yellow dwarf main sequence star, with characteristics similar to the Sun,[5] located 628 light-years away in the Virgo constellation.[1]
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Virgo[1] |
| Right ascension | 14h 18m 43.9225s[2] |
| Declination | −20° 16′ 31.844″[2] |
| Apparent magnitude (V) | 11.309[3] |
| Characteristics | |
| Spectral type | G3V[4] |
| Apparent magnitude (B) | 12.51±0.32[5] |
| Apparent magnitude (R) | ~11.00[5] |
| Apparent magnitude (I) | 10.49±0.02[5] |
| Apparent magnitude (J) | 9.984±0.024[5] |
| Apparent magnitude (H) | 9.659±0.022[5] |
| Apparent magnitude (K) | 9.589±0.023[5] |
| Astrometry | |
| Radial velocity (Rv) | −1.34±0.61[2] km/s |
| Proper motion (μ) | RA: 0.088(27) mas/yr[2] Dec.: 17.350(21) mas/yr[2] |
| Parallax (π) | 5.1912±0.0262 mas[2] |
| Distance | 628 ± 3 ly (192.6 ± 1.0 pc) |
| Details | |
| Mass | 1.022±0.101[4] M☉ |
| Radius | 0.946±0.054[4] R☉ |
| Surface gravity (log g) | 4.5±0.2[4] cgs |
| Temperature | 5700±150[4] K |
| Metallicity [Fe/H] | 0.01±0.10[4] dex |
| Rotational velocity (v sin i) | 3.0±1.0[4] km/s |
| Age | 5+3.1 −0[4][6] Gyr |
| Other designations | |
| TOI-818, TIC 46096489, WASP-16, TYC 6147-229-1, GSC 06147-00229, 2MASS J14184392-2016317, SDSS J141843.92-201631.8[5] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
Planetary system
In 2009, a planet of the star was announced by the SuperWASP project. It is another hot Jupiter type exoplanet.[4]
In 2024, a candidate mini-neptune was detected, also using the transit method. Further observations are needed to confirm its existence. The planet takes ten days to fully orbit WASP-16 and has an equilibrium temperature of 810 K (537 °C).[7]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.908+0.045 −0.071 MJ |
0.0422+0.0010 −0.0017 |
3.1186068(12) | <0.018 | 85.22+0.27 −0.43° |
1.008+0.083 −0.060 RJ |
| c (unconfirmed) | — | — | 10.457+0.018 −0.028 |
— | — | 2.2±0.23 R🜨 |
