Entering orbit…
| Yours | GJ 849 b | |
|---|---|---|
| Mass | 194.0 × Earth | 284.0 × Earth |
| Radius | 9.37 × Earth | 13.9 × Earth |
| Density (composition) | 1.30 g/cm³ | 0.58 g/cm³ |
| Temperature | 70.0 K | 74.0 K |
| Starlight received | 0.00 × Earth | 0.00 × Earth |
| Star temperature | 5,600 K | 3,467 K |
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.
Tidal heat sustains a subsurface ocean over a rock seafloor: a strong candidate for life (Europa-like, 100/100).
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Merged with an adjacent moon: too close for both to hold a stable orbit.
Small and distant: a quiet, stable companion.