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Habitability
73/ 100
Habitable

Ocra

by Borianis12
0

Ice World

✦ Camislia System
Magnetic FieldLow Activity
Why is this a Ice World?Your planet orbits at 1.49 AU from its star, resulting in frigid temperatures of 245K.
Ice worlds form beyond the frost line where temperatures are low enough for water and other volatiles to freeze solid. They may have subsurface oceans beneath thick ice shells.
Classification Criteria:
✓ Distance: 1.49 AU (>3 AU) or Temperature <200K✓ Temperature: 245K✓ Water content: 50.0% for ice formation
Habitability ScoreHabitable
73
Contributing Factors
water60
Water present but mostly frozen
geology60
Some geological activity provides slow nutrient cycling
rotation100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution
Organic Chemistry84
Core organic elements (CHNO) present (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere70
Nitrogen atmosphere provides protection but not breathable
temperature40
Extreme temperature - very difficult for life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
2.90x Earth (1.73e+25 kg)
Radius
1.43x Earth (9,085 km)
This planet: 1.43× Earth radiusEarth: 1× (baseline)
Surface Gravity
1.43x Earth (14.0 m/s²)
Surface Temperature
245 K (-28 °C / -19 °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
1.49 AU (223 million km)
Orbital Period
1.82 years

Atmosphere

Thin nitrogen and methane atmosphere

Elemental Composition

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

Surface Characteristics

Frozen surface covered in water ice, possible subsurface ocean if tidal heating present

Closest Real Exoplanet

GJ 251 c86% similar
Orbiting GJ 251
YoursGJ 251 c
Mass2.90 × Earth3.88 × Earth
Radius1.75 × Earth1.80 × Earth
Density (composition)3.00 g/cm³3.67 g/cm³
Temperature245.1 K216.0 K
Starlight received0.45 × Earth0.40 × Earth
Star temperature5,600 K3,342 K
Discovered 2025 via radial velocity · 18 light-years awaySource: NASA Exoplanet Archive
Moons
Moon 1stable0.0089% - 14.5 radii

Small and distant: a quiet, stable companion.

Moon 2stable0.00010% - 11.3 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.

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