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Habitability
0/ 100
Uninhabitable

Velban

0

Rocky Terrestrial

Magnetic FieldModerate Activity
Why is this a Rocky Terrestrial?Your planet is dominated by silicate (22.1%) and iron (14.7%) content, forming a rocky terrestrial body.
Rocky terrestrial planets are primarily composed of silicate rocks and metals. They're the most common type of small planet in the universe.
Classification Criteria:
✓ Silicon: 22.1% + Iron: 14.7% + Magnesium: 4.4%✓ Mass: 1.0x Earth (terrestrial range)
Habitability ScoreUninhabitable
0
Contributing Factors
water50
Water present but likely as steam
geology90
Active geology recycles nutrients and drives carbon cycle
rotation100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution
Organic Chemistry80
Core organic elements (CHNO) present
atmosphere70
Nitrogen atmosphere provides protection but not breathable
temperature5
Scorching - hot enough to melt lead, though rock stays solid; no chance for life
magnetic Field100
Magnetic field provides radiation protection — but the black hole's accretion disk bathes this orbit in hard X-ray radiation

Physical Properties

Mass
1.00x Earth (5.97e+24 kg)
Radius
1.00x Earth (6,371 km)
This planet: 1.00× Earth radiusEarth: 1× (baseline)
Surface Gravity
1.00x Earth (9.8 m/s²)
Surface Temperature
945 K (672 °C / 1,241 °F)
Rotation Period
24.0 hours/day
This planet: 24 h/dayEarth: 24 h/day

Orbital Environment

Star Type
BH-type (Black Hole)
Distance from Star
2.03 AU (304 million km)
Orbital Period
334 days

Atmosphere

Thin CO₂ and nitrogen atmosphere

Elemental Composition

O - Oxygen
22.1%
Si - Silicon
22.1%
H - Hydrogen
14.7%

Surface Characteristics

Rocky surface with impact craters, possible volcanic features

Closest Real Exoplanet

Kepler-163 b93% similar
Orbiting Kepler-163
YoursKepler-163 b
Mass1.00 × Earth1.16 × Earth
Radius1.01 × Earth1.05 × Earth
Density (composition)5.30 g/cm³5.52 g/cm³
Temperature945.0 K906.0 K
Starlight received97.1 × Earth116.0 × Earth
Star temperature— 5,776 K
Matched on physical properties only — no confirmed exoplanet orbits a black hole.Discovered 2014 via transit · 2,251 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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