Exoplanet CatalogThe HD 40307 planetary system
Distance (light-years)42.2
Spectral typeK2.5 V
Temperature (K)4,956
Mass (Sun = 1)0.77
| Planet | Method | Year | Orbital period (days) | Radius (Earth = 1) | Mass (Earth = 1) | Equilibrium temperature (K) |
|---|---|---|---|---|---|---|
| HD 40307 b | Radial Velocity | 2009 | 4.31 | – | 1,189.0 | 910 |
| HD 40307 c | Radial Velocity | 2009 | 9.62 | – | 1,868.5 | 696 |
| HD 40307 d | Radial Velocity | 2009 | 20.43 | – | 1,775.4 | 541 |
| HD 40307 f | Radial Velocity | 2013 | 51.76 | 2.13 | 5.2 | 398 |
| HD 40307 g | Radial Velocity | 2013 | 197.80 | 2.56 | 7.1 | 255 |
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) |
|---|---|---|---|
| K2.5 V | 4,956 | 0.72 | 0.77 |
About this page
HD 40307 is about 42.2 light-years from the Sun and has 5 confirmed planet(s).