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
15/ 100
Uninhabitable

Uranus

0

Ice Giant

Magnetic FieldModerate Activity
Why is this a Ice Giant?Your planet has moderate mass (15.0x Earth) with significant water, carbon, and nitrogen content, characteristic of ice giants.
Ice giants like Uranus and Neptune have icy interiors with thick atmospheres of hydrogen and helium, but not enough to be classified as gas giants.
Classification Criteria:
✓ Mass: 15.0x Earth (5-20x range)✓ Water/Carbon/Nitrogen rich composition
Habitability ScoreUninhabitable
15
Contributing Factors
water15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans
geology90
Active geology recycles nutrients and drives carbon cycle
rotation100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution
Organic Chemistry80
Core organic elements (CHNO) present
atmosphere30
Hydrogen-rich atmosphere typical of gas giants
temperature10
Frozen world - minimal potential for complex life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
15.00x Earth (8.96e+25 kg)
Radius
2.47x Earth (15,712 km)
This planet: 2.47× Earth radiusEarth: 1× (baseline)
Surface Gravity
2.47x Earth (24.2 m/s²)
Surface Temperature
97 K (-176 °C / -285 °F)
Rotation Period
17.0 hours/day (faster than Earth)
This planet: 17 h/dayEarth: 24 h/day

Orbital Environment

Star Type
G-type (Yellow (Sun-like))
Distance from Star
18.60 AU (2.78 billion km)
Orbital Period
80.2 years

Atmosphere

Hydrogen and helium with water, methane, and ammonia ices

Elemental Composition

H - Hydrogen
40.0%
He - Helium
25.0%
C - Carbon
15.0%

Surface Characteristics

Icy mantle surrounding rocky core, with hydrogen-helium atmosphere

Closest Real Exoplanet

HD 95735 c85% similar
Orbiting GJ 411
YoursHD 95735 c
Mass15.0 × Earth13.6 × Earth
Radius3.72 × Earth3.76 × Earth
Density (composition)1.60 g/cm³1.41 g/cm³
Temperature97.1 K63.0 K
Starlight received0.00 × Earth0.00 × Earth
Star temperature5,600 K3,719 K
Discovered 2021 via radial velocity · 19 light-years awaySource: NASA Exoplanet Archive
Moons
Moon 1rings0.010% - 1.8 radii

Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).

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