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Entering orbit…
Habitability
15/ 100
Uninhabitable

Sulfura

0

Gas Giant

Magnetic FieldExtreme Activity
Why is this a Gas Giant?Your planet has 60.2% hydrogen and helium, combined with a mass of 17.0x 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.
Classification Criteria:
✓ Hydrogen + Helium: 60.2% (>60% required)✓ Mass: 17.0x Earth (>10x required)
Habitability ScoreUninhabitable
15
Contributing Factors
water15
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 Chemistry80
Core organic elements (CHNO) present
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
17.00x Earth (1.02e+26 kg)
Radius
2.57x Earth (16,382 km)
This planet: 2.57× Earth radiusEarth: 1× (baseline)
Surface Gravity
2.57x Earth (25.2 m/s²)
Surface Temperature
72 K (-201 °C / -329 °F)
Rotation Period
16.0 hours/day (faster than Earth)
This planet: 16 h/dayEarth: 24 h/day

Orbital Environment

Star Type
G-type (Yellow (Sun-like))
Distance from Star
30.00 AU (4.49 billion km)
Orbital Period
164.3 years

Atmosphere

Hydrogen and helium dominated with trace methane and ammonia

Elemental Composition

H - Hydrogen
37.0%
He - Helium
23.1%
C - Carbon
13.9%

Surface Characteristics

No solid surface - thick gaseous envelope with possible rocky core deep within

Closest Real Exoplanet

G 192-15 c83% similar
Orbiting G 192-15
YoursG 192-15 c
Mass17.0 × Earth14.3 × Earth
Radius4.16 × Earth3.87 × Earth
Density (composition)1.30 g/cm³1.36 g/cm³
Temperature72.4 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% - 5.1 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, 84/100).

+10 geology: tidal flexing sustains geologic activity
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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