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
40/ 100
Marginal

Luas surpreendentes

0

Gas Giant

Magnetic FieldExtreme Activity
Why is this a Gas Giant?Your planet has 82.7% hydrogen and helium, combined with a mass of 60.0x Earth, which exceeds the gas giant threshold.
Gas giants form when massive cores capture enormous atmospheres of light gases. They typically form beyond the 'frost line' where volatiles can condense.
Classification Criteria:
✓ Hydrogen + Helium: 82.7% (>60% required)✓ Mass: 60.0x Earth (>10x required)
Habitability ScoreMarginal
40
Contributing Factors
water15
No solid surface — any water is locked in a supercritical mantle and hot ice, not oceans
geology50
Extreme volcanic activity may be hazardous (tidal flexing sustains geologic activity)
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry84
Core organic elements (CHNO) present (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere12
Hydrogen-rich atmosphere typical of gas giants (partially stripped by slow rotation)
temperature70
Challenging but potentially habitable temperature
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
60.00x Earth (3.58e+26 kg)
Radius
3.91x Earth (24,942 km)
This planet: 3.91× Earth radiusEarth: 1× (baseline)
Surface Gravity
3.91x Earth (38.4 m/s²)
Surface Temperature
264 K (-9 °C / 15 °F)
Rotation Period
10.0 hours/day (faster than Earth)
This planet: 10 h/dayEarth: 24 h/day

Orbital Environment

Star Type
G-type (Yellow (Sun-like))
Distance from Star
1.12 AU (168 million km)
Orbital Period
1.19 years

Atmosphere

Hydrogen and helium dominated with trace methane and ammonia

Elemental Composition

He - Helium
42.7%
H - Hydrogen
40.0%
O - Oxygen
6.7%

Surface Characteristics

No solid surface - thick gaseous envelope with possible rocky core deep within

Closest Real Exoplanet

HD 34445 f79% similar
Orbiting HD 34445
YoursHD 34445 f
Mass60.0 × Earth37.9 × Earth
Radius6.34 × Earth6.88 × Earth
Density (composition)1.30 g/cm³0.64 g/cm³
Temperature263.9 K266.0 K
Starlight received0.80 × Earth0.84 × Earth
Star temperature5,600 K5,836 K
Discovered 2017 via radial velocity · 150 light-years awaySource: NASA Exoplanet Archive
MoonsLife may exist on a moon
Moon 1stableOcean world0.025% - 6.0 radii

Small and distant: a quiet, stable companion.

Tidal braking locked the planet to its moon: one face forever moonward.

A thin tidal-warmed subsurface ocean may exist, but conditions are marginal (30/100).

Moon 2recedingOcean world - life0.18% - 12.5 radii

Outside the synchronous orbit: slowly receding, like Luna (~cm per year).

Tidal heat sustains a subsurface ocean over a rock seafloor: a strong candidate for life (Europa-like, 70/100).

+10 geology: tidal flexing sustains geologic activity+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