Habitability
6/ 100
Uninhabitable

Gargantua III

by Stargazer
0
Magnetic FieldModerate Activity
Why is this a Rocky Terrestrial?Your planet is dominated by silicate (16.7%) and iron (40.0%) content, forming a rocky terrestrial body.
Rocky terrestrial planets are primarily composed of silicate rocks and metals. They're the most common type of small planet in the universe.
Classification Criteria:
✓ Silicon: 16.7% + Iron: 40.0% + Magnesium: 0.0%✓ Mass: 2.0x Earth (terrestrial range)
Habitability ScoreUninhabitable
6
Contributing Factors
water0
No water - the recipe has no hydrogen and oxygen to form it
geology90
Active geology recycles nutrients and drives carbon cycle
rotation100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution
Organic Chemistry20
Limited organic chemistry potential
atmosphere70
Nitrogen atmosphere provides protection but not breathable
temperature70
Challenging but potentially habitable temperature
magnetic Field100
Magnetic field provides radiation protection — but the black hole's accretion disk bathes this orbit in hard X-ray radiation

Physical Properties

Mass
2.00x Earth (1.19e+25 kg)
Radius
1.26x Earth (8027 km)
Surface Gravity
1.26x Earth (12.4 m/s²)
Surface Temperature
316 K (43 °C / 109 °F)
Rotation Period
30.0 hours/day (slower than Earth)

Orbital Environment

Star Type
BH-type (Black Hole)
Distance from Star
15.50 AU (2.32 billion km)

Atmosphere

Thin nitrogen atmosphere

Elemental Composition

Fe - Iron
40.0%
C - Carbon
16.7%
Si - Silicon
16.7%

Surface Characteristics

Rocky surface with impact craters, possible volcanic features

Closest Real Exoplanet

Kepler-1512 b95% similar
Orbiting Kepler-1512
YoursKepler-1512 b
Mass2.00 × Earth1.76 × Earth
Radius1.26 × Earth1.18 × Earth
Temperature315.8 K322.0 K
Starlight received1.66 × Earth1.60 × Earth
Star temperature 4,372 K
Matched on physical properties only — no confirmed exoplanet orbits a black hole.Discovered 2016 via transit · 528 light-years awaySource: NASA Exoplanet Archive