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: 6356.0x EarthTemperature: 960K
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
rotation65
Slow rotation - significant day/night temperature variations, but life can adapt
Organic Chemistry80
Core organic elements (CHNO) present
atmosphere30
Hydrogen-rich atmosphere typical of gas giants
temperature5
Scorching - hot enough to melt lead, though rock stays solid; no chance for life
magnetic Field20
A strong field, but no surface beneath it — there is nothing here for it to shelter
Physical Properties
Mass
6356.00x Earth (3.80e+28 kg)
Radius
18.52x Earth (118,015 km)
Surface Gravity
18.52x Earth (181.7 m/s²)
Surface Temperature
960 K (687 °C / 1,269 °F)
Rotation Period
45.0 hours/day (slower than Earth)
Orbital Environment
Star Type
BH-type (Black Hole)
Distance from Star
2361.00 AU (353 billion km)
Orbital Period
36,278 years
Atmosphere
Hydrogen and helium dominated by methane absorption, with water clouds below
Elemental Composition
H - Hydrogen
55.4%
He - Helium
33.7%
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 — no confirmed exoplanet orbits a black hole.Discovered 2015 via imaging · 41 light-years awaySource: NASA Exoplanet Archive