Why is this a Ice Giant?Your planet has moderate mass (520.0x 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.
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans
geology50
Extreme volcanic activity may be hazardous (tidal flexing sustains geologic activity)
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry20
Limited organic chemistry potential
atmosphere12
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation)
temperature45
Extreme temperature - very difficult for life (large moon stabilizes the axial tilt - steady seasons)
magnetic Field100
Magnetic field provides radiation protection (a large close moon may help stir the core dynamo (speculative)) — but the remnant's shock fronts flood this orbit with cosmic rays
Physical Properties
Mass
520.00x Earth (3.11e+27 kg)
Radius
8.04x Earth (51,232 km)
Surface Gravity
8.04x Earth (78.9 m/s²)
Surface Temperature
224 K (-49 °C / -56 °F)
Rotation Period
20.0 hours/day (faster than Earth)
Orbital Environment
Star Type
SNR-type (Supernova Remnant)
Distance from Star
1.10 AU (165 million km)
Orbital Period
356 days
Atmosphere
Hydrogen and helium with water, methane, and ammonia ices
Elemental Composition
O - Oxygen
50.0%
N - Nitrogen
14.3%
Si - Silicon
14.3%
Surface Characteristics
No solid surface - a deep volatile envelope over a supercritical water mantle and hot-ice interior
Inside the Roche limit (1.79 planet radii): torn apart into a ring system.
Moon 2recedingOcean world - life1.6% - 9.6 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal braking locked the planet to its moon: one face forever moonward.
Tidal heat sustains a subsurface ocean over a rock seafloor: a strong candidate for life (Europa-like, 53/100).
+5 temperature: large moon stabilizes the axial tilt - steady seasons+10 geology: tidal flexing sustains geologic activity+5 magneticField: a large close moon may help stir the core dynamo (speculative)