Magnetic FieldModerate Activity
Why is this a Ice Giant?Your planet has moderate mass (7.7x 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: 7.7x 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 cyclerotation100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distributionOrganic Chemistry100
All CHNOPS elements present - building blocks of lifeatmosphere30
Hydrogen-rich atmosphere typical of gas giantstemperature20
Very cold - water frozen, challenging for lifemagnetic Field100
Magnetic field provides radiation protection Physical Properties
Mass
7.70x Earth (4.60e+25 kg)Radius
1.97x Earth (12,581 km)Surface Gravity
1.97x Earth (19.4 m/s²)Surface Temperature
186 K (-87 °C / -124 °F)Rotation Period
26.0 hours/day (slower than Earth)Orbital Environment
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 1rings0.00071% - 2.9 radii
Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).
Moon 2receding0.056% - 100.0 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).