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Habitability
15/ 100
Uninhabitable

Neidon

by Metamorphohedron1111
0

Ice Giant

✦ Kerbol
Magnetic FieldModerate Activity
Why is this a Ice Giant?Your planet has moderate mass (19.0x 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.
Classification Criteria:
✓ Mass: 19.0x Earth (5-20x range)✓ Water/Carbon/Nitrogen rich composition
Habitability ScoreUninhabitable
15
Contributing Factors
water15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans
geology100
Active geology recycles nutrients and drives carbon cycle (tidal flexing sustains geologic activity)
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry84
Core organic elements (CHNO) present (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere12
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation)
temperature10
Frozen world - minimal potential for complex life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
19.00x Earth (1.13e+26 kg)
Radius
2.67x Earth (17,000 km)
This planet: 2.67× Earth radiusEarth: 1× (baseline)
Surface Gravity
2.67x Earth (26.2 m/s²)
Surface Temperature
70 K (-203 °C / -333 °F)
Rotation Period
1.0 hours/day (faster than Earth)
This planet: 1 h/dayEarth: 24 h/day

Orbital Environment

Star Type
G-type (Yellow (Sun-like))
Distance from Star
35.00 AU (5.24 billion km)
Orbital Period
207.1 years

Atmosphere

Hydrogen and helium with water, methane, and ammonia ices

Elemental Composition

H - Hydrogen
39.6%
He - Helium
24.8%
C - Carbon
14.9%

Surface Characteristics

Icy mantle surrounding rocky core, with hydrogen-helium atmosphere

Closest Real Exoplanet

G 192-15 c79% similar
Orbiting G 192-15
YoursG 192-15 c
Mass19.0 × Earth14.3 × Earth
Radius4.03 × Earth3.87 × Earth
Density (composition)1.60 g/cm³1.36 g/cm³
Temperature70.1 K56.0 K
Starlight received0.00 × Earth0.00 × Earth
Star temperature5,600 K2,999 K
Discovered 2025 via radial velocity · 31 light-years awaySource: NASA Exoplanet Archive
MoonsLife may exist on a moon
Moon 1recedingOcean world - life0.089% - 7.7 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, 77/100).

Moon 2stable0.0014% - 15.8 radii

Small and distant: a quiet, stable companion.

Moon 3stable0.010% - 40.5 radii

Small and distant: a quiet, stable companion.

+10 geology: tidal flexing sustains geologic activity+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry
Surface views from three worlds: rocky ground under a ringed sky, a cloud deck, and a lit desert

New: Stand on Your World 🏔️

Every planet you build can now be seen from the ground. The terrain, the color of the sky, the weather and what hangs overhead are all read from the same numbers that shape the globe — so a thin-aired world gives you sunlit rock under a near-black sky crowded with stars, a runaway greenhouse seals you under an unbroken sulfur lid, and a gas giant leaves you in the cloud tops with nothing solid beneath you at all. If one of your moons wandered inside the Roche limit, what is left of it arcs overhead as rings.

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