WASP-20 is 691 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this F9 star; the first was found in 2015 by transit (SuperWASP).
Fly there in 3DWASP-20 b goes round its star every 4.90 days, 18 times as often as Mercury goes round the Sun.
WASP-20 is one of 2 stars in its system. The position of the other star is not catalogued, so only WASP-20 and its planets are drawn.
| Spectral type | F9 |
| Surface temperature | 5,940 K |
| Mass | 1.2 solar masses |
| Radius | 1.242 solar radii |
| Luminosity | 1.734 times the Sun |
| Apparent magnitude | 10.675 |
| Age | about 7 billion years |
| Distance from the Sun | 691.0 light-years (211.9 parsecs) |
| Position (J2000) | RA 5.1606°, Dec -23.9358° |
| Constellation | Cetus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| WASP-20 b | 4.90 days | 0.0600 AU | 15.468 R⊕ | 98.841 M⊕ | Transit, 2015 |
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.