| Yours | GJ 1148 c | |
|---|---|---|
| Mass | 98.0 × Earth | 68.1 × Earth |
| Radius | 7.46 × Earth | 9.71 × Earth |
| Density (composition) | 1.30 g/cm³ | 0.41 g/cm³ |
| Temperature | 98.3 K | 99.0 K |
| Starlight received | 0.02 × Earth | 0.02 × Earth |
| Star temperature | 5,600 K | 3,287 K |
Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).
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 (30/100).
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal heat sustains a subsurface ocean over a rock seafloor: a strong candidate for life (Europa-like, 81/100).
Merged with an adjacent moon: too close for both to hold a stable orbit.
Small and distant: a quiet, stable companion.
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
A thin tidal-warmed subsurface ocean may exist, but conditions are marginal (8/100).
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).