Magnetic Field Moderate Activity
Why is this a Carbon World? Your planet's carbon (21.4%) outweighs its oxygen (14.3%), so the mineralogy flips from silicate rock to carbide - a graphite crust over a diamond mantle. Carbon worlds form in carbon-rich disks where there isn't enough oxygen to bind it all into silicates. Instead carbon condenses directly into graphite, carbides, and - under pressure at depth - diamond. They form water-poor, so no life takes hold.
✓ Carbon: 21.4% (>=20% required) ✓ Carbon exceeds Oxygen: 21.4% > 14.3% ✓ Mass: 1.0x Earth (<=8x hycean ceiling)
Habitability Score Marginal
Contributing Factors water 50
Limited water content geology 90
Active geology recycles nutrients and drives carbon cycle rotation 65
Slow rotation - significant day/night temperature variations, but life can adapt Organic Chemistry 84
Core organic elements (CHNO) present (tidal pools cycle wet and dry - a boost for prebiotic chemistry) atmosphere 40
Atmosphere present but composition not ideal for life temperature 40
Extreme temperature - very difficult for life magnetic Field 100
Magnetic field provides radiation protection Physical Properties Mass
1.00x Earth (5.97e+24 kg) Radius
1.00x Earth (6,371 km) This planet: 1.00× Earth radius Earth: 1× (baseline)
Surface Gravity
1.00x Earth (9.8 m/s²) Surface Temperature
365 K (92 °C / 198 °F) Rotation Period
24.0 hours/day This planet: 24 h/day Earth: 24 h/day Orbital Environment Star Type
G-type (Yellow (Sun-like)) Distance from Star
1.33 AU (199 million km) Atmosphere Carbon monoxide and methane haze over a graphite surface
Surface Characteristics Graphite plains and carbide ridges over a diamond mantle - a glittering coal-black world Moons
Moon 1 merged 0.0013% - 8.0 radii
Merged with an adjacent moon: too close for both to hold a stable orbit.
Moon 2 stable 0.0089% - 16.8 radii
Small and distant: a quiet, stable companion.
Moon 3 stable 0.0028% - 7.5 radii
Small and distant: a quiet, stable companion.
+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry