Why is this a Water World?Your planet has abundant oxygen (26.3%) and hydrogen (21.1%), 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.
Active geology recycles nutrients and drives carbon cycle
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry84
Core organic elements (CHNO) present (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere40
Nitrogen-oxygen atmosphere - breathable and protective (partially stripped by slow rotation)
temperature100
Optimal temperature range for liquid water and life (large moon stabilizes the axial tilt - steady seasons)
magnetic Field100
Magnetic field provides radiation protection (a large close moon may help stir the core dynamo (speculative)) — but the black hole's accretion disk bathes this orbit in hard X-ray radiation
Physical Properties
Mass
1.90x Earth (1.13e+25 kg)
Radius
1.24x Earth (7,891 km)
Surface Gravity
1.24x Earth (12.2 m/s²)
Surface Temperature
280 K (7 °C / 44 °F)
Rotation Period
38.0 hours/day (slower than Earth)
Orbital Environment
Star Type
BH-type (Black Hole)
Distance from Star
23.20 AU (3.47 billion km)
Orbital Period
35.3 years
Atmosphere
Nitrogen and oxygen with water vapor, mild greenhouse effect
Elemental Composition
O - Oxygen
26.3%
H - Hydrogen
21.1%
Si - Silicon
21.1%
Surface Characteristics
Vast oceans covering most of the surface, scattered islands or archipelagos
Matched on physical properties only — no confirmed exoplanet orbits a black hole.Discovered 2015 via transit · 1,194 light-years awaySource: NASA Exoplanet Archive
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal braking locked the planet to its moon: one face forever moonward.
+5 temperature: large moon stabilizes the axial tilt - steady seasons+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry+5 magneticField: a large close moon may help stir the core dynamo (speculative)
Habitability
✓ Conditions suitable for life detectedThis planet exhibits the necessary conditions to support biological processes, including stable temperatures, liquid water, and protective magnetic fields.