TOI-238 is 263 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this K2 V star; the first was found in 2024 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-238 b goes round its star every 30.6 hours, 69 times as often as Mercury goes round the Sun.
| Spectral type | K2 V |
| Surface temperature | 5,059 K |
| Mass | 0.781 solar masses |
| Radius | 0.756 solar radii |
| Luminosity | 0.3382 times the Sun |
| Apparent magnitude | 10.748 |
| Age | about 7.9 billion years |
| Distance from the Sun | 262.7 light-years (80.5 parsecs) |
| Position (J2000) | RA 349.2311°, Dec -18.6066° |
| Constellation | Aquarius |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-238 b | 30.6 hours | 0.0212 AU | 1.559 R⊕ | 3.37 M⊕ | Transit, 2024 |
| TOI-238 c | 8.47 days | 0.0749 AU | 2.18 R⊕ | 6.7 M⊕ | Radial Velocity, 2024 |
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 5,059 K, 0.34 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.58 to 1.04 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 263 years ago, around 1760.