Why is this a Brown Dwarf?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: 4671.0x EarthTemperature: 454K
Habitability ScoreUninhabitable
0
Contributing Factors
water15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans
geology30
Geologically dead - no nutrient recycling
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry20
Limited organic chemistry potential
atmosphere12
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation)
temperature15
Extremely hot - hostile to known life forms
magnetic Field100
Magnetic field provides radiation protection
Physical Properties
Mass
4671.00x Earth (2.79e+28 kg)
Radius
16.72x Earth (106,499 km)
Surface Gravity
16.72x Earth (164.0 m/s²)
Surface Temperature
454 K (181 °C / 357 °F)
Rotation Period
31.0 hours/day (slower than Earth)
Orbital Environment
Star Type
K-type (Orange)
Distance from Star
1.00 AU (150 million km)
Orbital Period
1.20 years
Atmosphere
Cold hydrogen and helium with ammonia and water clouds
Elemental Composition
H - Hydrogen
50.0%
He - Helium
50.0%
Surface Characteristics
No surface: the coldest class of failed star, barely warmer than a summer day and glowing only in the infrared