Magnetic Field Moderate Activity
Why is this a Ice Giant? Your planet has moderate mass (16.0x 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: 16.0x Earth (5-20x range) ✓ Water/Carbon/Nitrogen rich composition
Habitability Score Extremely Harsh
Contributing Factors water 15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans geology 90
Active geology recycles nutrients and drives carbon cycle rotation 10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only Organic Chemistry 80
Core organic elements (CHNO) present atmosphere 12
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation) temperature 20
Very cold - water frozen, challenging for life magnetic Field 100
Magnetic field provides radiation protection Physical Properties Mass
16.00x Earth (9.56e+25 kg) Radius
2.52x Earth (16,054 km) This planet: 2.52× Earth radius Earth: 1× (baseline)
Surface Gravity
2.52x Earth (24.7 m/s²) Surface Temperature
120 K (-154 °C / -244 °F) Rotation Period
5.0 hours/day (faster than Earth) This planet: 5 h/day Earth: 24 h/day Orbital Environment Distance from Star
30.00 AU (4.49 billion km) Orbital Period
144.1 years Atmosphere Hydrogen and helium with water, methane, and ammonia ices
Surface Characteristics Icy mantle surrounding rocky core, with hydrogen-helium atmosphere Moons Life may exist on a moon
Moon 1 rings 0.50% - 1.5 radii
Inside the Roche limit (1.79 planet radii): torn apart into a ring system.
Moon 2 merged 0.010% - 2.3 radii
Merged with an adjacent moon: too close for both to hold a stable orbit.
Moon 3 stable Ocean world - life 0.045% - 4.6 radii
Small and distant: a quiet, stable companion.
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, 45/100).
Moon 4 stable 0.013% - 14.6 radii
Small and distant: a quiet, stable companion.