Magnetic FieldModerate Activity
Why is this a Ice Giant?Your planet has moderate mass (7.4x Earth) with significant water, carbon, and nitrogen content, characteristic of ice giants.Ice giants like Uranus and Neptune have icy interiors with thick atmospheres of hydrogen and helium, but not enough to be classified as gas giants.
✓ Mass: 7.4x Earth (5-20x range)✓ Water/Carbon/Nitrogen rich composition
Habitability ScoreUninhabitable
Contributing Factorswater15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceansgeology100
Active geology recycles nutrients and drives carbon cycle (tidal flexing sustains geologic activity)rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone onlyOrganic Chemistry80
Core organic elements (CHNO) presentatmosphere12
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation)temperature20
Very cold - water frozen, challenging for lifemagnetic Field100
Magnetic field provides radiation protection Physical Properties
Mass
7.40x Earth (4.42e+25 kg)Radius
1.95x Earth (12,415 km)Surface Gravity
1.95x Earth (19.1 m/s²)Surface Temperature
147 K (-126 °C / -195 °F)Rotation Period
25.0 hours/day (slower than Earth)Orbital Environment
Distance from Star
4.39 AU (657 million km)Atmosphere
Hydrogen and helium with water, methane, and ammonia ices
Surface Characteristics
Icy mantle surrounding rocky core, with hydrogen-helium atmosphereMoonsLife may exist on a moon
Moon 1recedingOcean world - life0.25% - 6.9 radii
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, 98/100).
Moon 2rings0.50% - 1.6 radii
Inside the Roche limit (1.92 planet radii): torn apart into a ring system.
+10 geology: tidal flexing sustains geologic activity