Sign in or create your account

Enter your email and we'll send a 6-digit code — no password needed.
We only keep your email and the username you choose. We never share or sell your email, and we don't send marketing — we use it only to email you a sign-in code. Learn more.
Habitability
5/ 100
Uninhabitable

Icosa

by DextahGIW
0

Rocky Terrestrial

Gresmond
Magnetic FieldHigh Activity
Why is this a Rocky Terrestrial?Your planet is dominated by silicate (25.5%) and iron (8.5%) 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: 25.5% + Iron: 8.5% + Magnesium: 10.6%✓ Mass: 1.0x Earth (terrestrial range)
Habitability ScoreUninhabitable
5
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
1.00x Earth (5.97e+24 kg)
Radius
1.00x Earth (6,371 km)
This planet: 1.00× Earth radiusEarth: 1× (baseline)
Surface Gravity
1.00x Earth (9.8 m/s²)
Surface Temperature
332 K (59 °C / 138 °F)
Rotation Period
24.0 hours/day
This planet: 24 h/dayEarth: 24 h/day

Orbital Environment

Star Type
BH-type (Black Hole)
Distance from Star
14.00 AU (2.09 billion km)
Orbital Period
16.6 years

Atmosphere

Thin nitrogen atmosphere

Elemental Composition

Si - Silicon
25.5%
H - Hydrogen
19.1%
He - Helium
17.0%

Surface Characteristics

Rocky surface with impact craters, possible volcanic features

Closest Real Exoplanet

Kepler-1649 b97% similar
Orbiting Kepler-1649
YoursKepler-1649 b
Mass1.00 × Earth1.03 × Earth
Radius1.01 × Earth1.02 × Earth
Density (composition)5.30 g/cm³5.35 g/cm³
Temperature332.3 K307.0 K
Starlight received2.04 × Earth2.21 × Earth
Star temperature 3,240 K
Matched on physical properties only — no confirmed exoplanet orbits a black hole.Discovered 2017 via transit · 301 light-years awaySource: NASA Exoplanet Archive
Moons
Moon 1rings10% - 2.8 radii

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

Surface views from three worlds: rocky ground under a ringed sky, a cloud deck, and a lit desert

New: Stand on Your World 🏔️

Every planet you build can now be seen from the ground. The terrain, the color of the sky, the weather and what hangs overhead are all read from the same numbers that shape the globe — so a thin-aired world gives you sunlit rock under a near-black sky crowded with stars, a runaway greenhouse seals you under an unbroken sulfur lid, and a gas giant leaves you in the cloud tops with nothing solid beneath you at all. If one of your moons wandered inside the Roche limit, what is left of it arcs overhead as rings.

Sign in or create your account

Enter your email and we'll send a 6-digit code — no password needed.
We only keep your email and the username you choose. We never share or sell your email, and we don't send marketing — we use it only to email you a sign-in code. Learn more.

Send feedback

We're still building out the best experience we can — and we'd love your input. Tell us about features you enjoy, ideas you'd like to see, or pain points where something feels off, and we'll know where to look next.

Type