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Entering orbit…
Habitability
40/ 100
Marginal

Indigo

by Metamorphohedron1111
0

Ice Giant

✦ Prismatopia
Magnetic FieldModerate Activity
Why is this a Ice Giant?Your planet has moderate mass (12.0x 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: 12.0x Earth (5-20x range)✓ Water/Carbon/Nitrogen rich composition
Habitability ScoreMarginal
40
Contributing Factors
water15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans
geology90
Active geology recycles nutrients and drives carbon cycle
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry80
Core organic elements (CHNO) present
atmosphere12
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation)
temperature40
Extreme temperature - very difficult for life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
12.00x Earth (7.17e+25 kg)
Radius
2.29x Earth (14,586 km)
This planet: 2.29× Earth radiusEarth: 1× (baseline)
Surface Gravity
2.29x Earth (22.5 m/s²)
Surface Temperature
200 K (-73 °C / -99 °F)
Rotation Period
22.0 hours/day (faster than Earth)
This planet: 22 h/dayEarth: 24 h/day

Orbital Environment

Star Type
F-type (White)
Distance from Star
10.50 AU (1.57 billion km)
Orbital Period
29.8 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

GJ 682 c81% similar
Orbiting GJ 682
YoursGJ 682 c
Mass12.0 × Earth8.70 × Earth
Radius3.46 × Earth2.89 × Earth
Density (composition)1.60 g/cm³1.99 g/cm³
Temperature200.4 K190.0 K
Starlight received0.05 × Earth0.06 × Earth
Star temperature6,750 K3,028 K
Discovered 2014 via radial velocity · 16 light-years awaySource: NASA Exoplanet Archive
MoonsLife may exist on a moon
Moon 1rings0.079% - 3.4 radii

Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).

Moon 2recedingOcean world - life0.14% - 7.2 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).

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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