Habitability
55/ 100
Marginal

Cronos

Gas 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: 4.1x EarthTemperature: 258K
Habitability ScoreMarginal
55
Contributing Factors
water50
Limited water content
geology60
Some geological activity provides slow nutrient cycling
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)
temperature70
Challenging but potentially habitable temperature
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
4.10x Earth (2.45e+25 kg)
Radius
1.60x Earth (10197 km)
Surface Gravity
1.60x Earth (15.7 m/s²)
Surface Temperature
258 K (-15 °C / 4 °F)
Rotation Period
19.0 hours/day (faster than Earth)

Orbital Environment

Star Type
F-type (White)
Distance from Star
2.85 AU (426353931 million km)

Atmosphere

Deep hydrogen-helium envelope with photochemical haze

Elemental Composition

H - Hydrogen
47.6%
He - Helium
38.1%
C - Carbon
4.8%

Surface Characteristics

No solid surface - a thick gas envelope wrapped around a small deep core (a mini-Neptune)
Moons
Moon 1receding0.10% - 6.5 radii

Outside the synchronous orbit: slowly receding, like Luna (~cm per year).

Tidal braking locked the planet to its moon: one face forever moonward.

Moon 2rings0.10% - 1.5 radii

Inside the Roche limit (2.80 planet radii): torn apart into a ring system.

Moon 3receding0.10% - 100.0 radii

Outside the synchronous orbit: slowly receding, like Luna (~cm per year).

Moon 4merged0.10% - 100.0 radii

Merged with an adjacent moon: too close for both to hold a stable orbit.