TOI-2031 A is 901 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 6,490 K star; the first was found in 2025 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-2031 A b goes round its star every 5.72 days, 15 times as often as Mercury goes round the Sun.
TOI-2031 A is one of 2 stars in its system. The position of the other star is not catalogued, so only TOI-2031 A and its planets are drawn.
| Surface temperature | 6,490 K |
| Mass | 1.174 solar masses |
| Radius | 1.241 solar radii |
| Luminosity | 2.46 times the Sun |
| Apparent magnitude | 11.254 |
| Age | about 2 billion years |
| Distance from the Sun | 900.5 light-years (276.1 parsecs) |
| Position (J2000) | RA 331.1178°, Dec 81.5660° |
| Constellation | Cepheus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-2031 A b | 5.72 days | 0.0660 AU | 14.202 R⊕ | 254.26 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.