Rocky Terrestrial Magnetic Field Moderate Activity
Why is this a Rocky Terrestrial? Your planet is dominated by silicate (17.4%) and iron (40.9%) 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: 17.4% + Iron: 40.9% + Magnesium: 0.0% ✓ Mass: 1.4x Earth (terrestrial range)
Habitability Score Uninhabitable
Contributing Factors water 90
Good water content geology 90
Active geology recycles nutrients and drives carbon cycle rotation 100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution Organic Chemistry 20
Limited organic chemistry potential atmosphere 70
Nitrogen atmosphere provides protection but not breathable temperature 100
Optimal temperature range for liquid water and 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
1.40x Earth (8.36e+24 kg) Radius
1.12x Earth (7,127 km) This planet: 1.12× Earth radius Earth: 1× (baseline)
Surface Gravity
1.12x Earth (11.0 m/s²) Surface Temperature
288 K (15 °C / 59 °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
18.60 AU (2.78 billion km) Atmosphere Thin nitrogen atmosphere
Surface Characteristics Rocky surface with impact craters, possible volcanic features Closest Real Exoplanet Orbiting Ross 128 Yours Ross 128 b Mass 1.40 × Earth 1.40 × Earth Radius 1.11 × Earth 1.11 × Earth Density (composition) 5.65 g/cm³ 5.64 g/cm³ Temperature 288.3 K 301.0 K Starlight received 1.16 × Earth 1.38 × Earth Star temperature — 3,192 K
Matched on physical properties only — no confirmed exoplanet orbits a black hole. Discovered 2017 via radial velocity · 11 light-years away Source: NASA Exoplanet Archive Browse all 5,568 real exoplanets Learn more about exoplanets