Life possible Moderate Activity
Why is this a Water World? Your planet has abundant oxygen (41.2%) 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.
✓ Oxygen: 41.2% + Hydrogen: 17.6% (water-forming elements) ✓ Temperature: 345K (habitable range) ✓ Distance: 15.00 AU (habitable zone)
Reading your planet’s atmosphere Dominant elements: O, H, N, Si, Fe, C This is what a telescope would measure while your planet crosses in front of its star: starlight passes through the atmosphere and spreads into a rainbow band. Each dark line marks a wavelength the atmosphere absorbed. Every element absorbs its own signature wavelengths — hydrogen always darkens the same two spots, calcium another pair, and so on. Astronomers match the lines in a real spectrum against a library of these signatures to say what an atmosphere is made of, light-years away, without ever visiting. A deeper line generally means more of that element is present. For a real planet, distance is usually measured by parallax: as Earth orbits the Sun, a nearby star appears to shift very slightly against the distant background stars, and the size of that shift gives its distance directly — the same geometry surveyors use, at an interstellar scale. Close
Habitability Score Extremely Harsh
Contributing Factors geology 90
Active geology recycles nutrients and drives carbon cycle rotation 10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only Organic Chemistry 80
Core organic elements (CHNO) present atmosphere 40
Nitrogen-oxygen atmosphere - breathable and protective (partially stripped by slow rotation) temperature 70
Challenging but potentially habitable temperature magnetic Field 30
No magnetic field - vulnerable to solar radiation — but the black hole's accretion disk bathes this orbit in hard X-ray radiation Physical Properties Mass
1.20x Earth (7.17e+24 kg) Radius
1.06x Earth (6,770 km) This planet: 1.06× Earth radius Earth: 1× (baseline)
Surface Gravity
1.06x Earth (10.4 m/s²) Surface Temperature
345 K (72 °C / 162 °F) Rotation Period
2,000.0 hours/day (slower than Earth) This planet: 2000 h/day Earth: 24 h/day Orbital Environment Star Type
BH-type (Black Hole) Distance from Star
15.00 AU (2.24 billion km) Atmosphere Nitrogen and oxygen with water vapor, mild greenhouse effect
Surface Characteristics Vast oceans covering most of the surface, scattered islands or archipelagos Closest Real Exoplanet Orbiting TRAPPIST-1 Yours TRAPPIST-1 c Mass 1.20 × Earth 1.31 × Earth Radius 1.30 × Earth 1.10 × Earth Density (composition) 3.00 g/cm³ 5.42 g/cm³ Temperature 345.4 K 340.0 K Starlight received 1.78 × Earth 2.21 × Earth Star temperature — 2,566 K
Matched on physical properties only — no confirmed exoplanet orbits a black hole. Discovered 2016 via transit · 40 light-years away Source: NASA Exoplanet Archive Browse all 5,893 real exoplanets Learn more about exoplanets
Habitability ✓ Conditions could support life This planet’s modelled conditions could support biological processes: stable temperatures, liquid water and the chemistry life as we know it needs. That makes life possible, not present.