Habitability
15/ 100
Uninhabitable

Lapetons (Draconis System)

by MAG

Gas Giant

Magnetic FieldExtreme Activity
Why is this a Gas Giant?Your planet has 87.9% hydrogen and helium, combined with a mass of 60.0x Earth, which exceeds the gas giant threshold.
Gas giants form when massive cores capture enormous atmospheres of light gases. They typically form beyond the 'frost line' where volatiles can condense.
Classification Criteria:
✓ Hydrogen + Helium: 87.9% (>60% required)✓ Mass: 60.0x Earth (>10x required)
Habitability ScoreUninhabitable
15
Contributing Factors
water50
Limited water content
geology50
Extreme volcanic activity may be hazardous (tidal flexing sustains geologic activity)
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)
temperature10
Frozen world - minimal potential for complex life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
60.00x Earth (3.58e+26 kg)
Radius
3.91x Earth (24942 km)
Surface Gravity
3.91x Earth (38.4 m/s²)
Surface Temperature
97 K (-176 °C / -285 °F)
Rotation Period
10.0 hours/day (faster than Earth)

Orbital Environment

Star Type
K-type (Orange)
Distance from Star
5.20 AU (777908928 million km)

Atmosphere

Hydrogen and helium dominated with trace methane and ammonia

Elemental Composition

H - Hydrogen
57.9%
He - Helium
29.9%
O - Oxygen
4.7%

Surface Characteristics

No solid surface - thick gaseous envelope with possible rocky core deep within

Closest Real Exoplanet

GJ 163 d76% similar
Orbiting GJ 163
YoursGJ 163 d
Mass60.0 × Earth29.4 × Earth
Radius3.91 × Earth5.92 × Earth
Temperature97.0 K106.0 K
Starlight received0.01 × Earth0.02 × Earth
Star temperature4,450 K3,500 K
Discovered 2013 via radial velocity · 49 light-years awaySource: NASA Exoplanet Archive
MoonsLife may exist on a moon
Moon 1recedingOcean world0.080% - 6.0 radii

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

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

A thin tidal-warmed subsurface ocean may exist, but conditions are marginal (22/100).

Moon 2recedingOcean world - life0.10% - 9.5 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, 96/100).

+10 geology: tidal flexing sustains geologic activity