Earth (First Ice Age)
Ice World
Magnetic FieldLow Activity
Why is this a Ice World?Your planet orbits at 1.66 AU from its star, resulting in frigid temperatures of 216K.
Ice worlds form beyond the frost line where temperatures are low enough for water and other volatiles to freeze solid. They may have subsurface oceans beneath thick ice shells.
Classification Criteria:
✓ Distance: 1.66 AU (>3 AU) or Temperature <200K✓ Temperature: 216K✓ Water content: 44.1% for ice formation
Habitability ScoreHabitable
Contributing Factors
water60
Water present but mostly frozen
geology60
Some geological activity provides slow nutrient cycling
rotation100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution
Organic Chemistry84
Core organic elements (CHNO) present (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere70
Nitrogen atmosphere provides protection but not breathable
temperature45
Extreme temperature - very difficult for life (large moon stabilizes the axial tilt - steady seasons)
magnetic Field100
Magnetic field provides radiation protection
Physical Properties
Mass
0.80x Earth (4.78e+24 kg)Radius
0.93x Earth (5914 km)Surface Gravity
0.93x Earth (9.1 m/s²)Surface Temperature
216 K (-57 °C / -71 °F)Rotation Period
18.0 hours/day (faster than Earth)Orbital Environment
Star Type
G-type (Yellow (Sun-like))Distance from Star
1.66 AU (248332465 million km)Atmosphere
Thin nitrogen and methane atmosphere
Elemental Composition
O - Oxygen
35.3%
H - Hydrogen
17.6%
Si - Silicon
17.6%
Surface Characteristics
Frozen surface covered in water ice, possible subsurface ocean if tidal heating presentMoons
Moon 1receding1.2% - 59.2 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).