Why is this a Lava World?A moon inside the synchronous orbit spiraled in and struck the planet. The impact remelted the surface into a global magma ocean.
Tidal decay drags close-in moons down over millions of years. A large enough impactor liquefies the crust, strips atmosphere, and resets the surface - whatever the orbit's temperature would otherwise allow.
Classification Criteria:
✓ Moon inside the synchronous orbit (tidal decay)✓ Impactor massive enough to remelt the crust- Orbit itself was fine: 4.49 AU, 1400K equilibrium
Habitability ScoreUninhabitable
0
Contributing Factors
water0
No water - the recipe has no hydrogen and oxygen to form it
geology50
Extreme volcanic activity may be hazardous (impact-resurfaced crust)
rotation65
Slow rotation - significant day/night temperature variations, but life can adapt
Organic Chemistry20
Limited organic chemistry potential
atmosphere4
Atmosphere present but composition not ideal for life (atmosphere partially stripped by the moon impact)
temperature0
Inferno world - temperatures exceed all possibility of life
magnetic Field100
Magnetic field provides radiation protection
Physical Properties
Mass
2.80x Earth (1.67e+25 kg)
Radius
1.41x Earth (8,980 km)
Surface Gravity
1.41x Earth (13.8 m/s²)
Surface Temperature
1,400 K (1,127 °C / 2,060 °F)
Rotation Period
61.0 hours/day (slower than Earth)
Orbital Environment
Star Type
A-type (Blue-White)
Distance from Star
4.49 AU (672 million km)
Orbital Period
6.73 years
Atmosphere
Vaporized rock and impact ash - the original atmosphere blown off by the strike
Elemental Composition
Fe - Iron
32.7%
O - Oxygen
25.0%
Mg - Magnesium
25.0%
Surface Characteristics
Surface remelted by a catastrophic moon impact - a global magma ocean cooling into scarred rock