Arognous (Barrinion System)
by MAGGas Dwarf
Magnetic FieldLow Activity
Why is this a Gas 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: 10.0x EarthTemperature: 265K
Habitability ScoreMarginal
Contributing Factors
water60
Water present but mostly frozen
geology70
Some geological activity provides slow nutrient cycling (tidal flexing sustains geologic activity)
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)
temperature75
Challenging but potentially habitable temperature (large moon stabilizes the axial tilt - steady seasons)
magnetic Field100
Magnetic field provides radiation protection (a large close moon may help stir the core dynamo (speculative))
Physical Properties
Mass
10.00x Earth (5.97e+25 kg)Radius
2.15x Earth (13726 km)Surface Gravity
2.15x Earth (21.1 m/s²)Surface Temperature
265 K (-8 °C / 17 °F)Rotation Period
4.0 hours/day (faster than Earth)Orbital Environment
Star Type
F-type (White)Distance from Star
2.70 AU (403914251 million km)Atmosphere
Deep hydrogen-helium envelope with photochemical haze
Elemental Composition
H - Hydrogen
50.0%
N - Nitrogen
21.4%
O - Oxygen
14.3%
Surface Characteristics
No solid surface - a thick gas envelope wrapped around a small deep core (a mini-Neptune)MoonsLife may exist on a moon
Moon 1rings10% - 1.5 radii
Inside the Roche limit (1.92 planet radii): torn apart into a ring system.
Moon 2recedingOcean world - life0.24% - 7.2 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal braking locked the planet to its moon: one face forever moonward.
Tidal heat sustains a subsurface ocean over a rock seafloor: a strong candidate for life (Europa-like, 100/100).
Moon 3recedingOcean world - life0.023% - 24.0 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal heat sustains a subsurface ocean over a rock seafloor: a strong candidate for life (Europa-like, 72/100).
Moon 4merged10% - 76.1 radii
Merged with an adjacent moon: too close for both to hold a stable orbit.