GJ 680 is 31.6 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this K5 star; the first was found in 2022 by radial velocity (Multiple Observatories).
Fly there in 3DGJ 680 b takes 47.3 years to go round its star once.
GJ 680 is one of 2 stars in its system: the other is drawn where the Washington Double Star Catalog measures it on the sky.
| Spectral type | K5 |
| Surface temperature | 3,563 K |
| Mass | 0.456 solar masses |
| Radius | 0.45933 solar radii |
| Luminosity | 0.03063 times the Sun |
| Apparent magnitude | 10.129 |
| Distance from the Sun | 31.6 light-years (9.7 parsecs) |
| Position (J2000) | RA 263.8072°, Dec -48.6788° |
| Constellation | Ara |
GJ 680 B is a M3V star of magnitude 13, moving through space with it. In 2025 it was 5.4″ from GJ 680, at position angle 314° (Washington Double Star Catalog, 17352-4841 SKF 104): 52.2 AU on the sky at this distance. The true distance can only be larger.
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| GJ 680 b | 47.3 years | 10.138 AU | 12 R⊕ estimated | 7977.5 M⊕ | Radial Velocity, 2022 |
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.