Carbon World Magnetic Field High Activity
Why is this a Carbon World? Your planet's carbon (51.1%) outweighs its oxygen (1.1%), 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: 51.1% (>=20% required) ✓ Carbon exceeds Oxygen: 51.1% > 1.1% ✓ Mass: 1.6x Earth (<=8x hycean ceiling)
Habitability Score Uninhabitable
Contributing Factors water 3
Very dry - minimal water - boiling away, little would be retained geology 100
Active geology recycles nutrients and drives carbon cycle (tidal flexing sustains geologic activity) rotation 10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only Organic Chemistry 100
All CHNOPS elements present - building blocks of life (tidal pools cycle wet and dry - a boost for prebiotic chemistry) atmosphere 16
Atmosphere present but composition not ideal for life (partially stripped by slow rotation) temperature 5
Scorching - hot enough to melt lead, though rock stays solid; no chance for life magnetic Field 100
Magnetic field provides radiation protection 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
611 K (338 °C / 640 °F) Rotation Period
8.0 hours/day (faster than Earth) This planet: 8 h/day Earth: 24 h/day Orbital Environment Star Type
A-type (Blue-White) Distance from Star
1.31 AU (196 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 stable 0.010% - 4.4 radii
Small and distant: a quiet, stable companion.
Tidal braking locked the planet to its moon: one face forever moonward.
Moon 2 stable 0.0032% - 8.9 radii
Small and distant: a quiet, stable companion.
Moon 3 stable 0.010% - 23.0 radii
Small and distant: a quiet, stable companion.
+10 geology: tidal flexing sustains geologic activity +4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry