WASP-108 is 844 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this F9 star; the first was found in 2020 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DWASP-108 b goes round its star every 2.68 days, 33 times as often as Mercury goes round the Sun.
Where the archive gives only a period or only an orbit size, the other is worked out from Kepler’s third law with the star’s mass.
| Spectral type | F9 |
| Surface temperature | 6,783 K |
| Mass | 1.167 solar masses |
| Radius | 1.34415 solar radii |
| Luminosity | 2.076 times the Sun |
| Apparent magnitude | 11.211 |
| Age | about 4.64 billion years |
| Distance from the Sun | 844.0 light-years (258.8 parsecs) |
| Position (J2000) | RA 195.8282°, Dec -49.6398° |
| Constellation | Centaurus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| WASP-108 b | 2.68 days | 0.0397 AU from Kepler’s law | 15.132 R⊕ | 283.5 M⊕ | Transit, 2020 |
Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.
For a star of 6,783 K, 2.1 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.29 to 2.23 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.
The light you see left 844 years ago, around 1180.