| Yours | GJ 163 d | |
|---|---|---|
| Mass | 60.0 × Earth | 29.4 × Earth |
| Radius | 6.34 × Earth | 5.92 × Earth |
| Density (composition) | 1.30 g/cm³ | 0.78 g/cm³ |
| Temperature | 90.6 K | 106.0 K |
| Starlight received | 0.01 × Earth | 0.02 × Earth |
| Star temperature | 5,600 K | 3,500 K |
Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).
Inside the Roche limit (1.79 planet radii): torn apart into a ring system.
Merged with an adjacent moon: too close for both to hold a stable orbit.
Small and distant: a quiet, stable companion.
Tidal braking locked the planet to its moon: one face forever moonward.
A thin tidal-warmed subsurface ocean may exist, but conditions are marginal (3/100).
Small and distant: a quiet, stable companion.
Tidal flexing melts its interior: an actively volcanic surface (Io-like).
Small and distant: a quiet, stable companion.
Merged with an adjacent moon: too close for both to hold a stable orbit.
Small and distant: a quiet, stable companion.
Merged with an adjacent moon: too close for both to hold a stable orbit.