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Entering orbit…
Habitability
0/ 100
Uninhabitable

Danus magnus

0

Gas Giant

Magnetic FieldExtreme Activity
Why is this a Gas Giant?Your planet has 0.0% hydrogen and helium, combined with a mass of 400.0x 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: 0.0% (>60% required)✓ Mass: 400.0x Earth (>10x required)
Habitability ScoreUninhabitable
0
Contributing Factors
water2
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans (water stripped by extreme rotation)
geology40
Extreme volcanic activity may be hazardous
rotation0
Catastrophic rotation - centrifugal forces would destroy surface structures and prevent atmosphere retention
Organic Chemistry0
Limited organic chemistry potential - chlorine-laced environment attacks organic molecules
atmosphere3
Hydrogen-rich atmosphere typical of gas giants (severely compromised by extreme rotation)
temperature0
Near absolute zero - all molecular activity ceases, impossible for life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
400.00x Earth (2.39e+27 kg)
Radius
7.37x Earth (46,942 km)
This planet: 7.37× Earth radiusEarth: 1× (baseline)
Surface Gravity
7.37x Earth (72.3 m/s²)
Surface Temperature
1 K (-273 °C / -459 °F)
Rotation Period
1.0 hours/day (faster than Earth)
This planet: 1 h/dayEarth: 24 h/day

Orbital Environment

Star Type
M-type (Red Dwarf)
Distance from Star
47434.20 AU (7.1 trillion km)
Orbital Period
18,861,522 years

Atmosphere

Hydrogen and helium dominated with trace methane and ammonia

Elemental Composition

Cl - Chlorine
90.8%
P - Phosphorus
6.6%
N - Nitrogen
2.6%

Surface Characteristics

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

Closest Real Exoplanet

AT2021ueyL b71% similar
Orbiting AT2021ueyL
YoursAT2021ueyL b
Mass400.0 × Earth426.0 × Earth
Radius11.9 × Earth13.6 × Earth
Density (composition)1.30 g/cm³0.93 g/cm³
Temperature0.57 K—
Starlight received0.00 × Earth—
Star temperature3,050 K3,680 K
Discovered 2025 via microlensing · 3,392 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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