Habitability
30/ 100
Extremely Harsh

Athens

Barren

Magnetic FieldModerate Activity
Why is this a Barren?Your planet has an unusual composition that doesn't fit standard classifications, or lacks the elements needed for complex geological processes.
Barren worlds can form from uncommon element combinations or may be remnants of larger bodies that lost their atmospheres and volatile materials.
Classification Criteria:
Composition doesn't match standard planet typesMass: 0.9x EarthTemperature: 194K
Habitability ScoreExtremely Harsh
30
Contributing Factors
water20
Very dry - minimal water
geology90
Active geology recycles nutrients and drives carbon cycle
rotation65
Slow rotation - significant day/night temperature variations, but life can adapt
Organic Chemistry84
Core organic elements (CHNO) present (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere40
Atmosphere present but composition not ideal for life
temperature20
Very cold - water frozen, challenging for life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
0.90x Earth (5.37e+24 kg)
Radius
0.97x Earth (6151 km)
Surface Gravity
0.97x Earth (9.5 m/s²)
Surface Temperature
194 K (-79 °C / -111 °F)
Rotation Period
28.0 hours/day (slower than Earth)

Orbital Environment

Star Type
K-type (Orange)
Distance from Star
1.30 AU (194477232 million km)

Atmosphere

Trace gases

Elemental Composition

S - Sulfur
54.5%
Fe - Iron
13.4%
Mg - Magnesium
10.7%

Surface Characteristics

Barren rocky surface with unusual elemental composition
Moons
Moon 1receding10% - 100.0 radii

Outside the synchronous orbit: slowly receding, like Luna (~cm per year).

+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry