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Ice World
✦ KerbolNone Activity
Why is this a Ice World?Your planet orbits at 3.44 AU from its star, resulting in frigid temperatures of 150K.
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: 3.44 AU (>3 AU) or Temperature <200K✓ Temperature: 150K✓ Water content: 25.3% for ice formation
Habitability ScoreExtremely Harsh
Contributing Factors
water24
Water present but mostly frozen (low gravity lets water escape to space)
geology30
Geologically dead - no nutrient recycling
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry100
All CHNOPS elements present - building blocks of life (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere28
Nitrogen atmosphere provides protection but not breathable (partially stripped by slow rotation)
temperature20
Very cold - water frozen, challenging for life
magnetic Field30
No magnetic field - vulnerable to solar radiation
Physical Properties
Mass
0.10x Earth (5.97e+23 kg)Radius
0.46x Earth (2,957 km)Surface Gravity
0.46x Earth (4.6 m/s²)Surface Temperature
150 K (-123 °C / -189 °F)Rotation Period
62.0 hours/day (slower than Earth)Orbital Environment
Star Type
G-type (Yellow (Sun-like))Distance from Star
3.44 AU (515 million km)Orbital Period
6.38 yearsAtmosphere
Thin nitrogen and methane atmosphere
Elemental Composition
Si - Silicon
45.3%
O - Oxygen
20.3%
H - Hydrogen
10.1%
Surface Characteristics
Frozen surface covered in water ice, possible subsurface ocean if tidal heating presentClosest Real Exoplanet
Kepler-1489 c74% similar
Orbiting Kepler-1489| Yours | Kepler-1489 c | |
|---|---|---|
| Mass | 0.10 × Earth | 0.09 × Earth |
| Radius | 0.57 × Earth | 0.51 × Earth |
| Density (composition) | 3.00 g/cm³ | 3.61 g/cm³ |
| Temperature | 150.3 K | — |
| Starlight received | 0.08 × Earth | — |
| Star temperature | 5,600 K | 5,566 K |
Moons
Moon 1receding0.079% - 12.8 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal braking locked the planet to its moon: one face forever moonward.
Moon 2merged0.074% - 14.2 radii
Merged with an adjacent moon: too close for both to hold a stable orbit.
Moon 3rings0.010% - 2.9 radii
Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).