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: 9534.0x EarthTemperature: 2200K
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 Chemistry84
Core organic elements (CHNO) present (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere30
Hydrogen-rich atmosphere typical of gas giants
temperature0
Inferno world - temperatures exceed all possibility of life
magnetic Field100
Magnetic field provides radiation protection
Physical Properties
Mass
9534.00x Earth (5.69e+28 kg)
Radius
21.20x Earth (135,093 km)
Surface Gravity
21.20x Earth (208.0 m/s²)
Surface Temperature
2,200 K (1,927 °C / 3,500 °F)
Rotation Period
4.0 hours/day (faster than Earth)
Orbital Environment
Star Type
BH-type (Black Hole)
Distance from Star
81.80 AU (12.2 billion km)
Orbital Period
234.0 years
Atmosphere
Hydrogen and helium with iron and silicate cloud decks - hot enough to rain molten metal
Elemental Composition
H - Hydrogen
56.0%
He - Helium
34.0%
C - Carbon
4.0%
Surface Characteristics
No surface: a deuterium-burning sphere the size of Jupiter and dozens of times its mass, glowing dull red from its own heat
Matched on physical properties only — no confirmed exoplanet orbits a black hole.Discovered 2020 via imaging · 309 light-years awaySource: NASA Exoplanet Archive