Magnetic FieldModerate Activity
Why is this a Ice Giant?Your planet has moderate mass (9.3x 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: 9.3x Earth (5-20x range)✓ Water/Carbon/Nitrogen rich composition
Habitability ScoreExtremely Harsh
Contributing Factorswater15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceansgeology90
Active geology recycles nutrients and drives carbon cyclerotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone onlyOrganic Chemistry84
Core organic elements (CHNO) present (tidal pools cycle wet and dry - a boost for prebiotic chemistry)atmosphere12
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation)temperature40
Extreme temperature - very difficult for lifemagnetic Field100
Magnetic field provides radiation protection Physical Properties
Mass
9.30x Earth (5.55e+25 kg)Radius
2.10x Earth (13,398 km)Surface Gravity
2.10x Earth (20.6 m/s²)Surface Temperature
208 K (-65 °C / -85 °F)Rotation Period
10.0 hours/day (faster than Earth)Orbital Environment
Distance from Star
3.48 AU (521 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 1receding0.050% - 14.5 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal braking locked the planet to its moon: one face forever moonward.
Moon 2stable0.00010% - 100.0 radii
Small and distant: a quiet, stable companion.
Moon 3merged0.00050% - 16.1 radii
Merged with an adjacent moon: too close for both to hold a stable orbit.
Moon 4stableOcean world - life0.045% - 7.2 radii
Small and distant: a quiet, stable companion.
Tidal heat sustains a subsurface ocean over a rock seafloor: a strong candidate for life (Europa-like, 45/100).
+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry