TOI-5489 is 147 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 3,547 K star; the first was found in 2025 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-5489 b goes round its star every 3.15 days, 28 times as often as Mercury goes round the Sun.
Where the archive gives only a period or only an orbit size, the other is worked out from Kepler’s third law with the star’s mass.
| Surface temperature | 3,547 K |
| Mass | 0.41 solar masses |
| Radius | 0.42 solar radii |
| Luminosity | 0.02467 times the Sun |
| Apparent magnitude | 13.824 |
| Distance from the Sun | 147.1 light-years (45.1 parsecs) |
| Position (J2000) | RA 128.6913°, Dec 11.4896° |
| Constellation | Cancer |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-5489 b | 3.15 days | 0.0313 AU from Kepler’s law | 1.4 R⊕ | 2.54 M⊕ estimated | Transit, 2025 |
| TOI-5489 c | 4.92 days | 0.0421 AU from Kepler’s law | 1.28 R⊕ | 2.18 M⊕ estimated | 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 3,547 K, 0.025 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.16 to 0.32 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 147 years ago, around 1880.