Why is this a Gas Giant?Your planet has 25.5% hydrogen and helium, combined with a mass of 128.0x Earth, which exceeds the gas giant threshold.
Gas giants form when massive cores capture enormous atmospheres of light gases. They typically form beyond the 'frost line' where volatiles can condense.
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 Chemistry0
Limited organic chemistry potential - chlorine-laced environment attacks organic molecules — but the ground itself is radioactive, and no magnetic field shields a world from its own crust
atmosphere12
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation)
temperature15
Frozen world - minimal potential for complex 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))
Physical Properties
Mass
128.00x Earth (7.64e+26 kg)
Radius
5.04x Earth (32,108 km)
Surface Gravity
5.04x Earth (49.4 m/s²)
Surface Temperature
84 K (-189 °C / -308 °F)
Rotation Period
10.0 hours/day (faster than Earth)
Orbital Environment
Star Type
M-type (Red Dwarf)
Distance from Star
2.17 AU (325 million km)
Orbital Period
5.84 years
Atmosphere
Hydrogen and helium dominated with trace methane and ammonia
Elemental Composition
Cl - Chlorine
27.2%
He - Helium
13.2%
H - Hydrogen
12.3%
Surface Characteristics
No solid surface - thick gaseous envelope with possible rocky core deep within
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, 97/100).
Moon 2rings0.079% - 2.8 radii
Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).
+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)