Charting the planet…
| Yours | Barnard e | |
|---|---|---|
| Mass | 0.10 × Earth | 0.19 × Earth |
| Radius | 0.54 × Earth | 0.64 × Earth |
| Density (composition) | 3.42 g/cm³ | 4.11 g/cm³ |
| Temperature | 354.0 K | 340.0 K |
| Starlight received | 2.63 × Earth | 2.45 × Earth |
| Star temperature | 4,450 K | 3,195 K |
Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).