Magnetic FieldModerate Activity
Why is this a Ice Giant?Your planet has moderate mass (8.0x 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: 8.0x 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)temperature20
Very cold - water frozen, challenging for lifemagnetic Field100
Magnetic field provides radiation protection Physical Properties
Mass
8.00x Earth (4.78e+25 kg)Radius
2.00x Earth (12,742 km)Surface Gravity
2.00x Earth (19.6 m/s²)Surface Temperature
123 K (-150 °C / -237 °F)Rotation Period
16.0 hours/day (faster than Earth)Orbital Environment
Star Type
G-type (Yellow (Sun-like))Distance from Star
11.50 AU (1.72 billion km)Atmosphere
Hydrogen and helium with water, methane, and ammonia ices
Surface Characteristics
Icy mantle surrounding rocky core, with hydrogen-helium atmosphereMoons
Moon 1merged0.0016% - 5.9 radii
Merged with an adjacent moon: too close for both to hold a stable orbit.
Moon 2stable0.0045% - 5.8 radii
Small and distant: a quiet, stable companion.
Moon 3stable0.025% - 29.0 radii
Small and distant: a quiet, stable companion.
+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry