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: 3.2x EarthTemperature: 161K
Habitability ScoreUninhabitable
14
Contributing Factors
water11
Limited water content - frozen solid, no liquid phase at this temperature
geology90
Active geology recycles nutrients and drives carbon cycle
rotation30
Very slow rotation - severe temperature swings between eternal day and night sides
Organic Chemistry100
All CHNOPS elements present - building blocks of life
atmosphere70
Nitrogen atmosphere provides protection but not breathable
temperature20
Very cold - water frozen, challenging for life
magnetic Field30
No magnetic field - vulnerable to solar radiation
Physical Properties
Mass
3.20x Earth (1.91e+25 kg)
Radius
1.47x Earth (9,388 km)
Surface Gravity
1.47x Earth (14.5 m/s²)
Surface Temperature
161 K (-112 °C / -170 °F)
Rotation Period
113.0 hours/day (slower than Earth)
Orbital Environment
Star Type
BH-type (Black Hole)
Distance from Star
59.60 AU (8.92 billion km)
Orbital Period
145.5 years
Atmosphere
Thin CO₂ and nitrogen atmosphere
Elemental Composition
Fe - Iron
20.5%
H - Hydrogen
18.5%
S - Sulfur
10.5%
Surface Characteristics
Barren rocky surface with unusual elemental composition
Matched on physical properties only — no confirmed exoplanet orbits a black hole.Discovered 2017 via radial velocity · 18 light-years awaySource: NASA Exoplanet Archive