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: 2.5x EarthTemperature: 143K
Habitability ScoreUninhabitable
10
Contributing Factors
water11
Limited water content - frozen solid, no liquid phase at this temperature
geology90
Active geology recycles nutrients and drives carbon cycle
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry29
Carbon and hydrogen present - organic chemistry possible - chlorine-laced environment attacks organic molecules (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere20
CO₂ atmosphere with moderate greenhouse effect (partially stripped by slow rotation)
temperature20
Very cold - water frozen, challenging for life
magnetic Field100
Magnetic field provides radiation protection
Physical Properties
Mass
2.50x Earth (1.49e+25 kg)
Radius
1.36x Earth (8,647 km)
Surface Gravity
1.36x Earth (13.3 m/s²)
Surface Temperature
143 K (-130 °C / -201 °F)
Rotation Period
3.0 hours/day (faster than Earth)
Orbital Environment
Star Type
NS-type (Neutron Star)
Distance from Star
0.52 AU (77.8 million km)
Orbital Period
116 days
Atmosphere
Thin CO₂ atmosphere
Elemental Composition
Si - Silicon
18.4%
C - Carbon
17.2%
Na - Sodium
16.1%
Surface Characteristics
Barren rocky surface with unusual elemental composition
Matched on physical properties only — but pulsar planets are real: the first exoplanets ever confirmed (PSR B1257+12, 1992) orbit a neutron star.Discovered 2017 via radial velocity · 18 light-years awaySource: NASA Exoplanet Archive