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Entering orbit…
Habitability
62/ 100
Habitable

Baleen

by DextahGIW
0

Water World

✦ Gresmond
Life DetectedMagnetic FieldLow Activity
Why is this a Water World?Your planet has abundant oxygen (35.3%) and hydrogen (17.6%), creating extensive water coverage while in the habitable temperature zone.
Water worlds have deep global oceans covering most or all of their surface. They form when planets have high water content and orbit in the habitable zone.
Classification Criteria:
✓ Oxygen: 35.3% + Hydrogen: 17.6% (water-forming elements)✓ Temperature: 253K (habitable range)✓ Distance: 27.60 AU (habitable zone)
Habitability ScoreHabitable
62
Contributing Factors
water60
Water present but mostly frozen
geology60
Some geological activity provides slow nutrient cycling
rotation100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution
Organic Chemistry80
Core organic elements (CHNO) present
atmosphere100
Nitrogen-oxygen atmosphere - breathable and protective
temperature70
Challenging but potentially habitable temperature
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
0.80x Earth (4.78e+24 kg)
Radius
0.93x Earth (5,914 km)
This planet: 0.93× Earth radiusEarth: 1× (baseline)
Surface Gravity
0.93x Earth (9.1 m/s²)
Surface Temperature
253 K (-20 °C / -5 °F)
Rotation Period
18.0 hours/day (faster than Earth)
This planet: 18 h/dayEarth: 24 h/day

Orbital Environment

Star Type
BH-type (Black Hole)
Distance from Star
27.60 AU (4.13 billion km)
Orbital Period
45.9 years

Atmosphere

Nitrogen and oxygen with water vapor, mild greenhouse effect

Elemental Composition

O - Oxygen
35.3%
H - Hydrogen
17.6%
Si - Silicon
17.6%

Surface Characteristics

Vast oceans covering most of the surface, scattered islands or archipelagos

Closest Real Exoplanet

TRAPPIST-1 e85% similar
Orbiting TRAPPIST-1
YoursTRAPPIST-1 e
Mass0.80 × Earth0.69 × Earth
Radius1.14 × Earth0.92 × Earth
Density (composition)3.00 g/cm³4.90 g/cm³
Temperature252.8 K250.0 K
Starlight received0.53 × Earth0.65 × Earth
Star temperature— 2,566 K
Matched on physical properties only — no confirmed exoplanet orbits a black hole.Discovered 2017 via transit · 40 light-years awaySource: NASA Exoplanet Archive

Habitability

✓ Conditions suitable for life detectedThis planet exhibits the necessary conditions to support biological processes, including stable temperatures, liquid water, and protective magnetic fields.
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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