Ice Giant
No life — too hot for liquid waterMagnetic FieldExtreme Activity
Why is this a Ice Giant?Your planet has moderate mass (8.5x 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: 8.5x Earth (5-20x range)✓ Water/Carbon/Nitrogen rich composition
Habitability ScoreUninhabitable
Contributing Factorswater15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceansgeology40
Extreme volcanic activity may be hazardousrotation25
Very fast rotation - perpetual hurricane-force winds, extreme Coriolis effects, hazardous for complex lifeOrganic Chemistry100
All CHNOPS elements present - building blocks of lifeatmosphere30
Hydrogen-rich atmosphere typical of gas giantstemperature5
Scorching - hot enough to melt lead, though rock stays solid; no chance for lifemagnetic Field100
Magnetic field provides radiation protection Physical Properties
Mass
8.50x Earth (5.08e+25 kg)Radius
2.04x Earth (13,002 km)Surface Gravity
2.04x Earth (20.0 m/s²)Surface Temperature
601 K (328 °C / 623 °F)Rotation Period
5.0 hours/day (faster than Earth)Orbital Environment
Star Type
G-type (Yellow (Sun-like))Distance from Star
0.22 AU (32.9 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 interiorMoons
Moon 1rings0.010% - 1.6 radii
Inside the Roche limit (1.92 planet radii): torn apart into a ring system.
Moon 2rings0.010% - 2.2 radii
Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).