GJ 1289 is 27.2 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M4.5 Ve star; the first was found in 2024 by radial velocity (Multiple Observatories).
Fly there in 3DGJ 1289 b takes 111.7 days to go round its star once.
| Spectral type | M4.5 Ve |
| Surface temperature | 3,296 K |
| Mass | 0.21 solar masses |
| Radius | 0.245012 solar radii |
| Luminosity | 0.005496 times the Sun |
| Apparent magnitude | 12.48 |
| Distance from the Sun | 27.2 light-years (8.4 parsecs) |
| Position (J2000) | RA 355.7813°, Dec 36.5363° |
| Constellation | Andromeda |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| GJ 1289 b | 111.7 days | 0.270 AU | 2.38 R⊕ estimated | 6.27 M⊕ minimum | 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 3,296 K, 0.0055 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.077 to 0.15 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 27 years ago, within living memory.