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Entering orbit…
Habitability
15/ 100
Uninhabitable

Helios

0

Gas Giant

Magnetic FieldExtreme Activity
Why is this a Gas Giant?Your planet has 94.7% hydrogen and helium, combined with a mass of 2773.0x 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: 94.7% (>60% required)✓ Mass: 2773.0x 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
geology40
Extreme volcanic activity may be hazardous
rotation65
Slow rotation - significant day/night temperature variations, but life can adapt
Organic Chemistry50
Carbon and hydrogen present - organic chemistry possible
atmosphere30
Hydrogen-rich atmosphere typical of gas giants
temperature10
Frozen world - minimal potential for complex life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
2773.00x Earth (1.66e+28 kg)
Radius
14.05x Earth (89,507 km)
This planet: 14.05× Earth radiusEarth: 1× (baseline)
Surface Gravity
14.05x Earth (137.8 m/s²)
Surface Temperature
70 K (-203 °C / -334 °F)
Rotation Period
48.0 hours/day (slower than Earth)
This planet: 48 h/dayEarth: 24 h/day

Orbital Environment

Star Type
SNR-type (Supernova Remnant)
Distance from Star
94.00 AU (14.1 billion km)
Orbital Period
770.2 years

Atmosphere

Hydrogen and helium dominated with trace methane and ammonia

Elemental Composition

H - Hydrogen
57.9%
He - Helium
36.8%
C - Carbon
3.2%

Surface Characteristics

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

Closest Real Exoplanet

WISPIT 2 b64% similar
Orbiting WISPIT 2
YoursWISPIT 2 b
Mass2,773 × Earth1,540 × Earth
Radius22.7 × Earth17.9 × Earth
Density (composition)1.30 g/cm³1.48 g/cm³
Temperature70.0 K33.0 K
Starlight received0.00 × Earth0.00 × Earth
Star temperature— 4,400 K
Discovered 2025 via imaging · 440 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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