Exoplanet CatalogThe Ross 128 planetary system
Distance (light-years)11.0
Spectral typeM4
Temperature (K)3,192
Mass (Sun = 1)0.17
| Planet | Method | Year | Orbital period (days) | Radius (Earth = 1) | Mass (Earth = 1) | Equilibrium temperature (K) |
|---|---|---|---|---|---|---|
| Ross 128 b | Radial Velocity | 2017 | 9.87 | 1.11 | 1.4 | 301 |
Values are the archive’s composite parameters and may combine several publications; mass may be a minimum mass (M·sin i). “–” means no value in the archive.
The star
| Spectral type | Temperature (K) | Radius (Sun = 1) | Mass (Sun = 1) |
|---|---|---|---|
| M4 | 3,192 | 0.20 | 0.17 |
About this page
Ross 128 is about 11.0 light-years from the Sun and has 1 confirmed planet(s).