Rocky Terrestrial Magnetic Field Moderate Activity
Why is this a Rocky Terrestrial? Your planet is dominated by silicate (40.0%) and iron (10.7%) 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: 40.0% + Iron: 10.7% + Magnesium: 10.7% ✓ Mass: 1.6x Earth (terrestrial range)
Habitability Score Uninhabitable
Contributing Factors water 0
No water - the recipe has no hydrogen and oxygen to form it 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 20
Limited organic chemistry potential atmosphere 28
Nitrogen atmosphere provides protection but not breathable (partially stripped by slow rotation) temperature 20
Very cold - water frozen, challenging 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
1.60x Earth (9.56e+24 kg) Radius
1.17x Earth (7,452 km) This planet: 1.17× Earth radius Earth: 1× (baseline)
Surface Gravity
1.17x Earth (11.5 m/s²) Surface Temperature
175 K (-98 °C / -144 °F) Rotation Period
40.0 hours/day (slower than Earth) This planet: 40 h/day Earth: 24 h/day Orbital Environment Star Type
BH-type (Black Hole) Distance from Star
50.20 AU (7.51 billion km) Orbital Period
112.5 years Atmosphere Thin, dusty CO₂ and nitrogen atmosphere
Surface Characteristics Rocky surface with impact craters, possible volcanic features Closest Real Exoplanet Orbiting GJ 3323 Yours GJ 3323 c Mass 1.60 × Earth 2.31 × Earth Radius 1.15 × Earth 1.32 × Earth Density (composition) 5.80 g/cm³ 5.53 g/cm³ Temperature 175.5 K 148.0 K Starlight received 0.16 × Earth 0.17 × Earth Star temperature — 3,159 K
Matched on physical properties only — no confirmed exoplanet orbits a black hole. Discovered 2017 via radial velocity · 18 light-years away Source: NASA Exoplanet Archive Browse all 5,568 real exoplanets Learn more about exoplanets Moons
Moon 1 receding 10% - 66.8 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry