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Entering orbit…
Habitability
96/ 100
Highly Habitable

Crux 9

0

Water World

✦ Oan 8 5 system
Life DetectedMagnetic FieldHigh Activity
Why is this a Water World?Your planet has abundant oxygen (41.2%) and hydrogen (17.6%), creating extensive water coverage while in the habitable temperature zone.
Water worlds have deep global oceans covering most or all of their surface. They form when planets have high water content and orbit in the habitable zone.
Classification Criteria:
✓ Oxygen: 41.2% + Hydrogen: 17.6% (water-forming elements)✓ Temperature: 285K (habitable range)✓ Distance: 1.10 AU (habitable zone)
Habitability ScoreHighly Habitable
96
Contributing Factors
water100
Abundant liquid water at surface temperature
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
atmosphere100
Nitrogen-oxygen atmosphere - breathable and protective
temperature100
Optimal temperature range for liquid water and life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
3.80x Earth (2.27e+25 kg)
Radius
1.56x Earth (9,942 km)
This planet: 1.56× Earth radiusEarth: 1× (baseline)
Surface Gravity
1.56x Earth (15.3 m/s²)
Surface Temperature
285 K (12 °C / 54 °F)
Rotation Period
20.0 hours/day (faster than Earth)
This planet: 20 h/dayEarth: 24 h/day

Orbital Environment

Star Type
G-type (Yellow (Sun-like))
Distance from Star
1.10 AU (165 million km)
Orbital Period
1.15 years

Atmosphere

Nitrogen and oxygen with water vapor, mild greenhouse effect

Elemental Composition

O - Oxygen
41.2%
H - Hydrogen
17.6%
N - Nitrogen
11.8%

Surface Characteristics

Vast oceans covering most of the surface, scattered islands or archipelagos

Closest Real Exoplanet

Kepler-1544 b93% similar
Orbiting Kepler-1544
YoursKepler-1544 b
Mass3.80 × Earth3.82 × Earth
Radius1.91 × Earth1.78 × Earth
Density (composition)3.00 g/cm³3.73 g/cm³
Temperature285.2 K269.0 K
Starlight received0.83 × Earth0.83 × Earth
Star temperature5,600 K4,886 K
Discovered 2016 via transit · 1,093 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.

Moon 2merged0.00016% - 7.4 radii

Merged with an adjacent moon: too close for both to hold a stable orbit.

Moon 3merged0.00032% - 6.3 radii

Merged with an adjacent moon: too close for both to hold a stable orbit.

Moon 4merged0.00016% - 7.5 radii

Merged with an adjacent moon: too close for both to hold a stable orbit.

Habitability

✓ Conditions suitable for life detectedThis planet exhibits the necessary conditions to support biological processes, including stable temperatures, liquid water, and protective magnetic fields.
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.

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