TOI-5678 is 539 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G7 V star; the first was found in 2023 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DTOI-5678 b goes round its star every 47.7 days, 1.8 times as often as Mercury goes round the Sun.
| Spectral type | G7 V |
| Surface temperature | 5,485 K |
| Mass | 0.905 solar masses |
| Radius | 0.938 solar radii |
| Luminosity | 0.7401 times the Sun |
| Apparent magnitude | 11.438 |
| Age | about 8.5 billion years |
| Distance from the Sun | 539.4 light-years (165.4 parsecs) |
| Position (J2000) | RA 47.3842°, Dec -34.1985° |
| Constellation | Fornax |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| TOI-5678 b | 47.7 days | 0.249 AU | 4.91 R⊕ | 20 M⊕ | Transit, 2023 |
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 5,485 K, 0.74 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.83 to 1.48 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 539 years ago, around 1490.