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Entering orbit…
Habitability
0/ 100
Uninhabitable

A Star full of Skies?

by Vinny
0

Brown Dwarf

Magnetic FieldNone Activity
Why is this a Brown Dwarf?Your planet has an unusual composition that doesn't fit standard classifications, or lacks the elements needed for complex geological processes.
Barren worlds can form from uncommon element combinations or may be remnants of larger bodies that lost their atmospheres and volatile materials.
Classification Criteria:
Composition doesn't match standard planet typesMass: 9534.0x EarthTemperature: 12359K
Habitability ScoreUninhabitable
0
Contributing Factors
water15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans
geology30
Geologically dead - no nutrient recycling
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)
temperature0
Inferno world - temperatures exceed all possibility of life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
9534.00x Earth (5.69e+28 kg)
Radius
21.20x Earth (135,093 km)
This planet: 21.20× Earth radiusEarth: 1× (baseline)
Surface Gravity
21.20x Earth (208.0 m/s²)
Surface Temperature
12,359 K (12,086 °C / 21,787 °F)
Rotation Period
2,000.0 hours/day (slower than Earth)
This planet: 2000 h/dayEarth: 24 h/day

Orbital Environment

Star Type
O-type (Blue Supergiant)
Distance from Star
0.16 AU (23.9 million km)
Orbital Period
4 days
Time Dilation
Clocks run 1.5 minutes per year slower than deep space — about 1.9 hours over a lifetime

Atmosphere

Hydrogen and helium with iron and silicate cloud decks - hot enough to rain molten metal

Elemental Composition

H - Hydrogen
44.7%
He - Helium
39.1%
C - Carbon
5.6%

Surface Characteristics

No surface: a deuterium-burning sphere the size of Jupiter and dozens of times its mass, glowing dull red from its own heat

Closest Real Exoplanet

Luhman 16 b56% similar
Orbiting Luhman 16 A
YoursLuhman 16 b
Mass9,534 × Earth9,340 × Earth
Radius21.2 × Earth11.9 × Earth
Density (composition)— 30.5 g/cm³
Temperature12,359 K—
Starlight received3,906,250 × Earth—
Star temperature35,000 K—
Discovered 2017 via imagingSource: 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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