Exoplanet CatalogThe Kapteyn planetary system
Distance (light-years)12.8
Spectral typeM2.0V
Temperature (K)3,550
Mass (Sun = 1)0.28
| Planet | Method | Year | Orbital period (days) | Radius (Earth = 1) | Mass (Earth = 1) | Equilibrium temperature (K) |
|---|---|---|---|---|---|---|
| Kapteyn c | Radial Velocity | 2014 | 121.54 | 2.54 | 7.0 | 166 |
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) |
|---|---|---|---|
| M2.0V | 3,550 | 0.29 | 0.28 |
About this page
Kapteyn is about 12.8 light-years from the Sun and has 1 confirmed planet(s).