Life Detected Low Activity
Why is this a Rocky Terrestrial? Your planet is dominated by silicate (21.7%) and iron (13.0%) 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: 21.7% + Iron: 13.0% + Magnesium: 8.7% ✓ Mass: 0.4x Earth (terrestrial range)
Habitability Score Marginal
Contributing Factors water 64
Abundant water - mostly frozen (low gravity lets water escape to space) geology 60
Some geological activity provides slow nutrient cycling rotation 100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution Organic Chemistry 80
Core organic elements (CHNO) present atmosphere 50
CO₂ atmosphere with moderate greenhouse effect 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
0.40x Earth (2.39e+24 kg) Radius
0.74x Earth (4,694 km) This planet: 0.74× Earth radius Earth: 1× (baseline)
Surface Gravity
0.74x Earth (7.2 m/s²) Surface Temperature
267 K (-7 °C / 20 °F) Rotation Period
25.0 hours/day (slower than Earth) This planet: 25 h/day Earth: 24 h/day Orbital Environment Star Type
BH-type (Black Hole) Distance from Star
22.60 AU (3.38 billion km) Atmosphere Thin CO₂ atmosphere
Surface Characteristics Rocky surface with impact craters, possible volcanic features Closest Real Exoplanet Orbiting TRAPPIST-1 Yours TRAPPIST-1 d Mass 0.40 × Earth 0.39 × Earth Radius 0.79 × Earth 0.79 × Earth Density (composition) 4.45 g/cm³ 4.37 g/cm³ Temperature 266.6 K 286.0 K Starlight received 0.78 × Earth 1.11 × 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 5,568 real exoplanets Learn more about exoplanets
Habitability ✓ Conditions suitable for life detected This planet exhibits the necessary conditions to support biological processes, including stable temperatures, liquid water, and protective magnetic fields.