WASP-155 is 1,303 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 5,660 K star; the first was found in 2025 by transit (SuperWASP).
Fly there in 3DWASP-155 b goes round its star every 3.11 days, 28 times as often as Mercury goes round the Sun.
| Surface temperature | 5,660 K |
| Mass | 1.09 solar masses |
| Radius | 1.24 solar radii |
| Luminosity | 1.385 times the Sun |
| Apparent magnitude | 12.365 |
| Age | about 1.7 billion years |
| Distance from the Sun | 1303.4 light-years (399.6 parsecs) |
| Position (J2000) | RA 347.9797°, Dec 33.0476° |
| Constellation | Pegasus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| WASP-155 b | 3.11 days | 0.0430 AU | 13.451 R⊕ | 276.83 M⊕ | Transit, 2025 |
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 5,660 K, 1.4 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.13 to 1.99 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 1,303 years ago, around AD 720.