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Entering orbit…
Habitability
0/ 100
Uninhabitable

Red

by Metamorphohedron1111
0

Lava World

✦ Prismatopia
Extreme Activity
Why is this a Lava World?Your planet's proximity to its star (0.10 AU) results in extreme surface temperatures of 1376K.
Lava worlds orbit so close to their stars that rocky surfaces melt into oceans of molten rock. Recent planet formation can also create temporary lava worlds.
Classification Criteria:
✓ Temperature: 1376K (>1000K)
Habitability ScoreUninhabitable
0
Contributing Factors
water28
Water present but likely as steam (low gravity lets water escape to space)
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
atmosphere10
No atmosphere - exposed to radiation and temperature extremes
temperature0
Inferno world - temperatures exceed all possibility of life
magnetic Field30
No magnetic field - vulnerable to solar radiation

Physical Properties

Mass
0.30x Earth (1.79e+24 kg)
Radius
0.67x Earth (4,265 km)
This planet: 0.67× Earth radiusEarth: 1× (baseline)
Surface Gravity
0.67x Earth (6.6 m/s²)
Surface Temperature
1,376 K (1,103 °C / 2,017 °F)
Rotation Period
46.0 hours/day (slower than Earth)
This planet: 46 h/dayEarth: 24 h/day

Orbital Environment

Star Type
F-type (White)
Distance from Star
0.10 AU (15 million km)
Orbital Period
10 days
Time Dilation
Clocks run 6.1 seconds per year slower than deep space — about 8 minutes over a lifetime

Atmosphere

Minimal - too hot to retain

Elemental Composition

Fe - Iron
20.2%
Si - Silicon
20.2%
Mg - Magnesium
15.2%

Surface Characteristics

Molten surface with lava flows, volcanic activity everywhere

Closest Real Exoplanet

Kepler-1963 b95% similar
Orbiting Kepler-1963
YoursKepler-1963 b
Mass0.30 × Earth0.34 × Earth
Radius0.72 × Earth0.74 × Earth
Density (composition)4.38 g/cm³4.51 g/cm³
Temperature1,376 K1,448 K
Starlight received600.0 × Earth612.0 × Earth
Star temperature6,750 K5,726 K
Discovered 2021 via transit · 1,608 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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