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: 6859.0x EarthTemperature: 1137K
Habitability ScoreUninhabitable
0
Contributing Factors
water15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans
geology40
Geologically dead - no nutrient recycling (tidal flexing sustains geologic activity)
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry80
Core organic elements (CHNO) present
atmosphere12
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation)
temperature0
Inferno world - temperatures exceed all possibility of life
magnetic Field20
A strong field, but no surface beneath it — there is nothing here for it to shelter
Physical Properties
Mass
6859.00x Earth (4.10e+28 kg)
Radius
19.00x Earth (121,049 km)
Surface Gravity
19.00x Earth (186.4 m/s²)
Surface Temperature
1,137 K (864 °C / 1,587 °F)
Rotation Period
5.0 hours/day (faster than Earth)
Orbital Environment
Star Type
NS-type (Neutron Star)
Distance from Star
2.50 AU (374 million km)
Orbital Period
3.34 years
Atmosphere
Hydrogen and helium dominated by methane absorption, with water clouds below
Elemental Composition
H - Hydrogen
56.0%
He - Helium
34.0%
C - Carbon
4.0%
Surface Characteristics
No surface: a cooling failed star, its methane atmosphere absorbing so much red light it would look magenta to the eye
Matched on physical properties only — but pulsar planets are real: the first exoplanets ever confirmed (PSR B1257+12, 1992) orbit a neutron star.Discovered 2015 via imaging · 41 light-years awaySource: NASA Exoplanet Archive