Rocky Terrestrial Magnetic Field Extreme Activity
Why is this a Rocky Terrestrial? Your planet is dominated by silicate (25.0%) and iron (12.5%) 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.
✓ Silicon: 25.0% + Iron: 12.5% + Magnesium: 3.8% ✓ Mass: 5.8x Earth (terrestrial range)
Habitability Score Extremely Harsh
Contributing Factors water 50
Limited water content geology 40
Extreme volcanic activity may be hazardous rotation 100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution Organic Chemistry 80
Core organic elements (CHNO) present atmosphere 70
Nitrogen atmosphere provides protection but not breathable temperature 40
Extreme temperature - very difficult for life magnetic Field 100
Magnetic field provides radiation protection — but the black hole's accretion disk bathes this orbit in hard X-ray radiation Physical Properties Mass
5.80x Earth (3.46e+25 kg) Radius
1.80x Earth (11,447 km) This planet: 1.80× Earth radius Earth: 1× (baseline)
Surface Gravity
1.80x Earth (17.6 m/s²) Surface Temperature
389 K (116 °C / 241 °F) Rotation Period
24.0 hours/day This planet: 24 h/day Earth: 24 h/day Orbital Environment Star Type
BH-type (Black Hole) Distance from Star
10.50 AU (1.57 billion km) Atmosphere Thin CO₂ and nitrogen atmosphere
Surface Characteristics Rocky surface with impact craters, possible volcanic features Closest Real Exoplanet Orbiting LHS 1903 Yours LHS 1903 e Mass 5.80 × Earth 5.79 × Earth Radius 1.63 × Earth 1.73 × Earth Density (composition) 7.40 g/cm³ 6.16 g/cm³ Temperature 389.3 K 333.0 K Starlight received 3.63 × Earth 2.05 × Earth Star temperature — 3,664 K
Matched on physical properties only — no confirmed exoplanet orbits a black hole. Discovered 2026 via transit · 116 light-years away Source: NASA Exoplanet Archive Browse all 5,568 real exoplanets Learn more about exoplanets Moons
Moon 1 rings 1.4% - 1.9 radii
Inside the Roche limit (1.92 planet radii): torn apart into a ring system.
Moon 2 receding 1.3% - 96.0 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).