Rocky Terrestrial
No life — no phosphorus — DNA and ATP are built on itMagnetic FieldHigh Activity
Why is this a Rocky Terrestrial?Your planet is dominated by silicate (28.6%) and iron (24.8%) 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: 28.6% + Iron: 24.8% + Magnesium: 0.0%✓ Mass: 4.1x Earth (terrestrial range)
Habitability ScoreMarginal
Contributing Factorswater50
Limited water contentgeology90
Active geology recycles nutrients and drives carbon cyclerotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone onlyOrganic Chemistry54
Carbon and hydrogen present - organic chemistry possible (tidal pools cycle wet and dry - a boost for prebiotic chemistry)atmosphere20
CO₂ atmosphere with moderate greenhouse effect (partially stripped by slow rotation)temperature100
Optimal temperature range for liquid water and lifemagnetic Field100
Magnetic field provides radiation protection Physical Properties
Mass
4.10x Earth (2.45e+25 kg)Radius
1.60x Earth (10,197 km)Surface Gravity
1.60x Earth (15.7 m/s²)Surface Temperature
299 K (26 °C / 79 °F)Rotation Period
27.0 hours/day (slower than Earth)Orbital Environment
Distance from Star
0.62 AU (92.8 million km)Atmosphere
Thin CO₂ atmosphere
Surface Characteristics
Rocky surface with impact craters, possible volcanic featuresMoons
Moon 1receding10% - 65.6 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal braking locked the planet to its moon: one face forever moonward.
+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry