Ice Giant Magnetic Field Moderate Activity
Why is this a Ice Giant? Your planet has moderate mass (17.0x 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: 17.0x Earth (5-20x range) ✓ Water/Carbon/Nitrogen rich composition
Habitability Score Uninhabitable
Contributing Factors water 15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans geology 90
Active geology recycles nutrients and drives carbon cycle rotation 65
Slow rotation - significant day/night temperature variations, but life can adapt Organic Chemistry 84
Core organic elements (CHNO) present (tidal pools cycle wet and dry - a boost for prebiotic chemistry) atmosphere 30
Hydrogen-rich atmosphere typical of gas giants temperature 0
Near absolute zero - all molecular activity ceases, impossible for life magnetic Field 100
Magnetic field provides radiation protection Physical Properties Mass
17.00x Earth (1.02e+26 kg) Radius
2.57x Earth (16,382 km) This planet: 2.57× Earth radius Earth: 1× (baseline)
Surface Gravity
2.57x Earth (25.2 m/s²) Surface Temperature
48 K (-225 °C / -373 °F) Rotation Period
47.0 hours/day (slower than Earth) This planet: 47 h/day Earth: 24 h/day Orbital Environment Star Type
G-type (Yellow (Sun-like)) Distance from Star
76.20 AU (11.4 billion km) Orbital Period
665.2 years Atmosphere Hydrogen and helium with water, methane, and ammonia ices
Surface Characteristics Icy mantle surrounding rocky core, with hydrogen-helium atmosphere Moons
Moon 1 rings 0.010% - 1.8 radii
Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).
Moon 2 stable 0.0050% - 10.8 radii
Small and distant: a quiet, stable companion.
+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry