Entering orbit…
Star and planet drawn to scale (a typical star of its class), with only the star's edge in view. Orbits spaced as in the star system view.
Planet, moons and orbits drawn to one scale; the smallest moons are enlarged so they can be seen.
Surface. Barren rocky surface with unusual elemental composition
Thin trace-gas atmosphere
Atmosphere present but composition not ideal for life (partially stripped by slow rotation)| Yours | Gliese 12 b | |
|---|---|---|
| Mass | 0.80 × Earth | 0.95 × Earth |
| Radius | 0.95 × Earth | 0.93 × Earth |
| Density (composition) | 5.08 g/cm³ | 6.51 g/cm³ |
| Temperature | 319.9 K | 315.0 K |
| Starlight received | 1.75 × Earth | 1.62 × Earth |
| Star temperature | 6,750 K | 3,328 K |
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal braking locked the planet to its moon: one face forever moonward.