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Entering orbit…
Habitability
28/ 100
Extremely Harsh

Haniostezt

0

Gas Giant

Magnetic FieldExtreme Activity
Why is this a Gas Giant?Your planet has 60.7% hydrogen and helium, combined with a mass of 565.0x 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: 60.7% (>60% required)✓ Mass: 565.0x Earth (>10x required)
Habitability ScoreExtremely Harsh
28
Contributing Factors
water15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans
geology40
Extreme volcanic activity may be hazardous
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry20
Limited organic chemistry potential
atmosphere12
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation)
temperature20
Very cold - water frozen, challenging for life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
565.00x Earth (3.37e+27 kg)
Radius
8.27x Earth (52,669 km)
This planet: 8.27× Earth radiusEarth: 1× (baseline)
Surface Gravity
8.27x Earth (81.1 m/s²)
Surface Temperature
145 K (-128 °C / -198 °F)
Rotation Period
2,000.0 hours/day (slower than Earth)
This planet: 2000 h/dayEarth: 24 h/day

Orbital Environment

Star Type
SNR-type (Supernova Remnant)
Distance from Star
2.59 AU (387 million km)
Orbital Period
3.52 years

Atmosphere

Hydrogen and helium dominated with trace methane and ammonia

Elemental Composition

Si - Silicon
39.3%
He - Helium
37.5%
H - Hydrogen
23.2%

Surface Characteristics

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

Closest Real Exoplanet

HD 190360 b97% similar
Orbiting HD 190360
YoursHD 190360 b
Mass565.0 × Earth537.0 × Earth
Radius13.4 × Earth13.5 × Earth
Density (composition)1.30 g/cm³1.20 g/cm³
Temperature145.3 K150.0 K
Starlight received0.07 × Earth0.07 × Earth
Star temperature— 5,560 K
Discovered 2003 via radial velocity · 52 light-years awaySource: NASA Exoplanet Archive
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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