Entering orbit…
| Yours | HD 40307 e | |
|---|---|---|
| Mass | 4.10 × Earth | 3.50 × Earth |
| Radius | 1.96 × Earth | 1.69 × Earth |
| Density (composition) | 3.00 g/cm³ | 4.00 g/cm³ |
| Temperature | 107.4 K | — |
| Starlight received | 0.02 × Earth | — |
| Star temperature | 6,750 K | 4,977 K |
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).