Entering orbit…
| Yours | Kepler-378 b | |
|---|---|---|
| Mass | 0.30 × Earth | 0.35 × Earth |
| Radius | 0.73 × Earth | 0.75 × Earth |
| Density (composition) | 4.22 g/cm³ | 4.53 g/cm³ |
| Temperature | 535.6 K | 503.0 K |
| Starlight received | 13.8 × Earth | 17.8 × Earth |
| Star temperature | 6,750 K | 4,661 K |
Inside the Roche limit (2.80 planet radii): torn apart into a ring system.
Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal braking locked the planet to its moon: one face forever moonward.
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Small and distant: a quiet, stable companion.