Destroyed — no longer habitableMagnetic FieldExtreme Activity
Why is this a Volcanic World?Runaway tidal heating from its moons drives volcanism across a cold crust - the planet is kneaded like Io.
Resonant, close-in moons pump orbital eccentricity, and the resulting tidal flexing dissipates enormous heat in the interior. Only a fraction of the surface is molten at once, so the ground between the vents stays as cold as the orbit allows - Io's own equilibrium temperature is about 110 K.
Classification Criteria:
✓ Close-in moons in a resonant configuration✓ Tidal heat flux beyond the runaway threshold- The orbit is not what melted it: 208.20 AU, 193K equilibrium
Habitability
Destroyed — no longer habitable
Physical Properties
Mass
1.00x Earth (5.97e+24 kg)
Radius
1.00x Earth (6,371 km)
Surface Gravity
1.00x Earth (9.8 m/s²)
Surface Temperature
193 K (-80 °C / -113 °F)
Rotation Period
12.0 hours/day (faster than Earth)
Orbital Environment
Star Type
B-type (Blue Giant)
Distance from Star
208.20 AU (31.1 billion km)
Orbital Period
950.0 years
Atmosphere
Volcanic outgassing - sulfur compounds and vaporized rock
Elemental Composition
O - Oxygen
13.7%
Si - Silicon
13.7%
Fe - Iron
10.3%
Surface Characteristics
Runaway tidal heating drives volcanism across a cold crust - lava lakes and sulfur plains between frozen plains