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.
Entering orbit…
Habitability
30/ 100
Extremely Harsh

Arieo

0

Gas Dwarf

Magnetic FieldLow Activity
Why is this a Gas Dwarf?Your planet has an unusual composition that doesn't fit standard classifications, or lacks the elements needed for complex geological processes.
Barren worlds can form from uncommon element combinations or may be remnants of larger bodies that lost their atmospheres and volatile materials.
Classification Criteria:
Composition doesn't match standard planet typesMass: 10.0x EarthTemperature: 181K
Habitability ScoreExtremely Harsh
30
Contributing Factors
water15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans
geology60
Some geological activity provides slow nutrient cycling
rotation60
Fast rotation - strong global wind patterns and weather systems, but manageable
Organic Chemistry20
Limited organic chemistry potential
atmosphere30
Hydrogen-rich atmosphere typical of gas giants
temperature20
Very cold - water frozen, challenging for life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
10.00x Earth (5.97e+25 kg)
Radius
2.15x Earth (13,726 km)
This planet: 2.15× Earth radiusEarth: 1× (baseline)
Surface Gravity
2.15x Earth (21.1 m/s²)
Surface Temperature
181 K (-92 °C / -134 °F)
Rotation Period
4.0 hours/day (faster than Earth)
This planet: 4 h/dayEarth: 24 h/day

Orbital Environment

Star Type
G-type (Yellow (Sun-like))
Distance from Star
2.36 AU (353 million km)
Orbital Period
3.63 years

Atmosphere

Deep hydrogen-helium envelope with photochemical haze

Elemental Composition

H - Hydrogen
47.4%
He - Helium
31.6%
N - Nitrogen
10.5%

Surface Characteristics

No solid surface - a thick gas envelope wrapped around a small deep core (a mini-Neptune)

Closest Real Exoplanet

Kepler-1536 b94% similar
Orbiting Kepler-1536
YoursKepler-1536 b
Mass10.0 × Earth10.0 × Earth
Radius3.25 × Earth3.14 × Earth
Density (composition)1.60 g/cm³1.78 g/cm³
Temperature181.0 K166.0 K
Starlight received0.18 × Earth0.19 × Earth
Star temperature5,600 K4,434 K
Discovered 2016 via transit · 1,262 light-years awaySource: NASA Exoplanet Archive
Moons
Moon 1rings0.00010% - 1.5 radii

Inside the Roche limit (1.92 planet radii): torn apart into a ring system.

Moon 2stable0.045% - 25.0 radii

Small and distant: a quiet, stable companion.

Moon 3stable0.00025% - 100.0 radii

Small and distant: a quiet, stable companion.

+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry
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