Entering orbit…
| Yours | Proxima Cen d | |
|---|---|---|
| Mass | 0.10 × Earth | 0.26 × Earth |
| Radius | 0.54 × Earth | 0.69 × Earth |
| Density (composition) | 3.49 g/cm³ | 4.32 g/cm³ |
| Temperature | 243.8 K | 282.0 K |
| Starlight received | 0.59 × Earth | 1.81 × Earth |
| Star temperature | — | 2,900 K |
Inside the Roche limit (2.80 planet radii): torn apart into a ring system.
Inside the Roche limit (2.80 planet radii): torn apart into a ring system.
Inside the Roche limit (2.80 planet radii): torn apart into a ring system.
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal braking locked the planet to its moon: one face forever moonward.
Merged with an adjacent moon: too close for both to hold a stable orbit.