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 30
Very slow rotation - severe temperature swings between eternal day and night sides Organic Chemistry 84
Core organic elements (CHNO) present (tidal pools cycle wet and dry - a boost for prebiotic chemistry) atmosphere 18
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation) 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
34 K (-239 °C / -398 °F) Rotation Period
16.0 hours/day (faster than Earth) This planet: 16 h/day Earth: 24 h/day Orbital Environment Star Type
BH-type (Black Hole) Distance from Star
3000.00 AU (449 billion km) Orbital Period
51,962 years Atmosphere Hydrogen and helium with water, methane, and ammonia ices
Surface Characteristics Icy mantle surrounding rocky core, with hydrogen-helium atmosphere Closest Real Exoplanet Orbiting KMT-2021-BLG-0171L Yours KMT-2021-BLG-0171L b Mass 17.0 × Earth 11.2 × Earth Radius 3.88 × Earth 3.35 × Earth Density (composition) 1.60 g/cm³ 1.64 g/cm³ Temperature 34.2 K — Starlight received 0.00 × Earth — Star temperature — 5,200 K
Matched on physical properties only — no confirmed exoplanet orbits a black hole. Discovered 2022 via microlensing · 15,003 light-years away Source: NASA Exoplanet Archive Browse all 5,568 real exoplanets Learn more about exoplanets Moons
Moon 1 receding 10% - 100.0 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Moon 2 merged 10% - 100.0 radii
Merged with an adjacent moon: too close for both to hold a stable orbit.
+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry