This world no longer exists — ITS ME, PAIN, THEY SKINNED ME AND ATE ME..., GOD, OH HELP ME... HELP ME... and IS THERE SOMETHING WRONG WITH ME collided at 6.11–51.40 AU.
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: 19.60 AU, 158K equilibrium
Habitability
Destroyed — no longer habitable
Physical Properties
Mass
0.10x Earth (5.97e+23 kg)
Radius
0.46x Earth (2,957 km)
Surface Gravity
0.46x Earth (4.6 m/s²)
Surface Temperature
158 K (-115 °C / -175 °F)
Rotation Period
1.0 hours/day (faster than Earth)
Orbital Environment
Star Type
A-type (Blue-White)
Distance from Star
19.60 AU (2.93 billion km)
Orbital Period
61.4 years
Atmosphere
Volcanic outgassing - sulfur compounds and vaporized rock
Elemental Composition
H - Hydrogen
60.0%
N - Nitrogen
20.0%
Fe - Iron
20.0%
Surface Characteristics
Runaway tidal heating drives volcanism across a cold crust - lava lakes and sulfur plains between frozen plains