Mars (50 million years later)
Rocky Terrestrial
Low Activity
Why is this a Rocky Terrestrial?Your planet is dominated by silicate (34.2%) and iron (20.5%) 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.
Classification Criteria:
✓ Silicon: 34.2% + Iron: 20.5% + Magnesium: 13.7%✓ Mass: 0.4x Earth (terrestrial range)
Habitability ScoreExtremely Harsh
Contributing Factors
water20
Very dry - minimal water
geology60
Some geological activity provides slow nutrient cycling
rotation30
Very slow rotation - severe temperature swings between eternal day and night sides
Organic Chemistry20
Limited organic chemistry potential
atmosphere42
Nitrogen atmosphere provides protection but not breathable (partially stripped by slow rotation)
temperature40
Extreme temperature - very difficult for life
magnetic Field30
No magnetic field - vulnerable to solar radiation
Physical Properties
Mass
0.40x Earth (2.39e+24 kg)Radius
0.74x Earth (4694 km)Surface Gravity
0.74x Earth (7.2 m/s²)Surface Temperature
227 K (-46 °C / -51 °F)Rotation Period
25.0 hours/day (slower than Earth)Orbital Environment
Star Type
G-type (Yellow (Sun-like))Distance from Star
1.50 AU (224396806 million km)Atmosphere
Thin CO₂ and nitrogen atmosphere
Elemental Composition
Si - Silicon
34.2%
O - Oxygen
20.5%
Fe - Iron
20.5%
Surface Characteristics
Rocky surface with impact craters, possible volcanic featuresMoons
Moon 1rings0.012% - 1.5 radii
Inside the Roche limit (2.80 planet radii): torn apart into a ring system.
Moon 2stable0.010% - 7.7 radii
Small and distant: a quiet, stable companion.