WASP-107
K-type star in the Virgo constellation
From Wikipedia, the free encyclopedia
WASP-107 (also known as TOI-1905) is a K6V-type main sequence star located 210 light-years from Earth in the constellation of Virgo. It has a mass of 0.68 solar masses with a radius of 0.67 solar radii. It has a temperature of 4425 Kelvin with a brightness of 0.132 solar luminosity and is around 3.4 billion years old.[5]
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Virgo[1] |
| Right ascension | 12h 33m 32.844s[2] |
| Declination | −10° 08′ 46.23″[2] |
| Apparent magnitude (V) | 11.47[3] |
| Characteristics | |
| Evolutionary stage | Main sequence[4] |
| Spectral type | K6[5] or K7V[4] |
| Astrometry | |
| Radial velocity (Rv) | +14.06±0.20[2] km/s |
| Proper motion (μ) | RA: −96.665 mas/yr[2] Dec.: −9.372 mas/yr[2] |
| Parallax (π) | 15.5277±0.0260 mas[2] |
| Distance | 210.0 ± 0.4 ly (64.4 ± 0.1 pc) |
| Details[5] | |
| Mass | 0.683+0.017 −0.016 M☉ |
| Radius | 0.67±0.02 R☉ |
| Luminosity | 0.132±0.003 L☉ |
| Surface gravity (log g) | 4.633±0.012 cgs |
| Temperature | 4425±70 K |
| Metallicity [Fe/H] | +0.02±0.09 dex |
| Rotation | 17.1±1.0 d[6] |
| Rotational velocity (v sin i) | 0.507+0.072 −0.086[6] km/s |
| Age | 3.4±0.7 Gyr |
| Other designations | |
| K2-235, EPIC 228724232, TOI-1905, TIC 429302040, WASP-107, TYC 5530-1795-1, 2MASS J12333284-1008461, GALAH 160403003601196[7] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
Planetary system
There are currently two exoplanets that have been discovered orbiting WASP-107; they are WASP-107b, a warm super-Neptunian planet, and WASP-107c, a gas giant planet.[8]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.096±0.005 MJ | 0.0566±0.0017 | 5.7214742(43)[6] | 0.06±0.04 | 89.560(78)[6]° | 0.96±0.03 RJ |
| c | ≥0.36±0.04 MJ | — | 1088+15 −16 |
0.28±0.07 | — | — |