No life — too hot for liquid water Extreme Activity
Why is this a Ice Giant? Your planet has moderate mass (10.0x 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: 10.0x 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 40
Extreme volcanic activity may be hazardous rotation 10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only Organic Chemistry 100
All CHNOPS elements present - building blocks of life atmosphere 12
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation) temperature 15
Extremely hot - hostile to known life forms magnetic Field 30
No magnetic field - vulnerable to solar radiation Physical Properties Mass
10.00x Earth (5.97e+25 kg) Radius
2.15x Earth (13,726 km) This planet: 2.15× Earth radius Earth: 1× (baseline)
Surface Gravity
2.15x Earth (21.1 m/s²) Surface Temperature
529 K (256 °C / 492 °F) Rotation Period
528.0 hours/day (slower than Earth) This planet: 528 h/day Earth: 24 h/day Orbital Environment Distance from Star
0.18 AU (26.9 million km) Atmosphere Hydrogen and helium with water, methane, and ammonia ices
Surface Characteristics No solid surface - a deep volatile envelope over a supercritical water mantle and hot-ice interior Moons
Moon 1 rings 0.00010% - 7.1 radii
Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).
Moon 2 receding 0.071% - 60.4 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).