WASP-33 is 398 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this A star; the first was found in 2010 by transit (SuperWASP).
Fly there in 3DWASP-33 b goes round its star every 29.3 hours, 72 times as often as Mercury goes round the Sun.
WASP-33 is one of 2 stars in its system. The position of the other star is not catalogued, so only WASP-33 and its planets are drawn.
| Spectral type | A |
| Surface temperature | 7,430 K |
| Mass | 1.495 solar masses |
| Radius | 1.444 solar radii |
| Luminosity | 6.598 times the Sun |
| Apparent magnitude | 8.14 |
| Distance from the Sun | 397.7 light-years (121.9 parsecs) |
| Position (J2000) | RA 36.7127°, Dec 37.5504° |
| Constellation | Andromeda |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| WASP-33 b | 29.3 hours | 0.0239 AU | 17.856 R⊕ | 665.22 M⊕ | Transit, 2010 |
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 7,430 K, 6.6 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 2.24 to 3.86 AU (approximate: the star lies just outside the range the formula was fitted to). 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 398 years ago, around 1630.