Why is this a Lava World?Runaway tidal heating from its moons keeps the surface molten - the planet is kneaded like Io, only far harder.
Resonant, close-in moons pump orbital eccentricity, and the resulting tidal flexing dissipates enormous heat in the interior. Past a threshold the crust cannot cool: volcanism resurfaces the world continuously.
Classification Criteria:
✓ Close-in moons in a resonant configuration✓ Tidal heat flux beyond the runaway threshold- Orbit itself was fine: 367.40 AU, 39K equilibrium
Habitability ScoreUninhabitable
0
Contributing Factors
water20
Very dry - minimal water
geology40
Extreme volcanic activity may be hazardous
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry50
Carbon and hydrogen present - organic chemistry possible
atmosphere16
Atmosphere present but composition not ideal for life (partially stripped by slow rotation)
temperature0
Near absolute zero - all molecular activity ceases, impossible for life (large moon stabilizes the axial tilt - steady seasons) (runaway tidal heating keeps the surface molten regardless of orbit)
magnetic Field100
Magnetic field provides radiation protection (a large close moon may help stir the core dynamo (speculative))
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
39 K (-234 °C / -390 °F)
Rotation Period
24.0 hours/day
Orbital Environment
Star Type
F-type (White)
Distance from Star
367.40 AU (55 billion km)
Orbital Period
6,176 years
Atmosphere
Volcanic outgassing - sulfur compounds and vaporized rock
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal braking locked the planet to its moon: one face forever moonward.
Moon 2receding1.4% - 7.5 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Moon 3merged3.2% - 17.9 radii
Merged with an adjacent moon: too close for both to hold a stable orbit.
+5 temperature: large moon stabilizes the axial tilt - steady seasons-85 temperature: runaway tidal heating keeps the surface molten regardless of orbit+5 magneticField: a large close moon may help stir the core dynamo (speculative)
