TOI-3261 is 979 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this K1.5+/-1 star; the first was found in 2024 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-3261 b goes round its star every 21.2 hours, 100 times as often as Mercury goes round the Sun.
| Spectral type | K1.5+/-1 |
| Surface temperature | 5,068 K |
| Mass | 0.861 solar masses |
| Radius | 0.849 solar radii |
| Luminosity | 0.43 times the Sun |
| Apparent magnitude | 13.261 |
| Age | about 6.5 billion years |
| Distance from the Sun | 978.9 light-years (300.1 parsecs) |
| Position (J2000) | RA 47.7285°, Dec -73.5320° |
| Constellation | Hydrus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-3261 b | 21.2 hours | 0.0171 AU | 3.82 R⊕ | 30.3 M⊕ | Transit, 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.