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: 4935.0x EarthTemperature: 521K
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
rotation30
Very slow rotation - extreme temperature swings between eternal day and night sides
Organic Chemistry84
Core organic elements (CHNO) present (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere18
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation)
temperature15
Extremely hot - hostile to known life forms
magnetic Field20
A strong field, but no surface beneath it — there is nothing here for it to shelter
Physical Properties
Mass
4935.00x Earth (2.95e+28 kg)
Radius
17.03x Earth (108,468 km)
Surface Gravity
17.03x Earth (167.0 m/s²)
Surface Temperature
521 K (248 °C / 478 °F)
Rotation Period
17.0 hours/day (faster than Earth)
Orbital Environment
Star Type
B-type (Blue Giant)
Distance from Star
87.20 AU (13 billion km)
Orbital Period
257.5 years
Atmosphere
Hydrogen and helium dominated by methane absorption, with water clouds below
Elemental Composition
H - Hydrogen
55.0%
He - Helium
30.0%
C - Carbon
6.0%
Surface Characteristics
No surface: a cooling failed star, its methane atmosphere absorbing so much red light it would look magenta to the eye