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Habitability
73/ 100
Habitable

maripakala

by appleeater
0

Earth Like

Life DetectedMagnetic FieldModerate Activity
Why is this a Earth Like?Your planet has a balanced composition with all CHNOPS elements, proper mass (4.8x Earth), and sits in the habitable zone at 0.73 AU.
Earth-like planets have the perfect combination of composition, temperature, mass, and magnetic field to potentially support complex life as we know it.
Classification Criteria:
✓ All CHNOPS elements present (C, H, N, O, P, S)✓ Mass: 4.8x Earth (0.5-2.0x range)✓ Temperature: 262K (250-320K range)✓ Magnetic field present✓ Distance: 0.73 AU (habitable zone)
Habitability ScoreHabitable
73
Contributing Factors
water60
Water present but mostly frozen
geology90
Active geology recycles nutrients and drives carbon cycle
rotation30
Very slow rotation - severe temperature swings between eternal day and night sides
Organic Chemistry100
All CHNOPS elements present - building blocks of life (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere60
Nitrogen-oxygen atmosphere - breathable and protective (partially stripped by slow rotation)
temperature70
Challenging but potentially habitable temperature
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
4.80x Earth (2.87e+25 kg)
Radius
1.69x Earth (10,747 km)
This planet: 1.69× Earth radiusEarth: 1× (baseline)
Surface Gravity
1.69x Earth (16.5 m/s²)
Surface Temperature
262 K (-11 °C / 12 °F)
Rotation Period
25.0 hours/day (slower than Earth)
This planet: 25 h/dayEarth: 24 h/day

Orbital Environment

Star Type
K-type (Orange)
Distance from Star
0.73 AU (109 million km)
Orbital Period
272 days

Atmosphere

Nitrogen-oxygen atmosphere with trace CO₂, water vapor, and argon

Elemental Composition

O - Oxygen
24.7%
Si - Silicon
22.7%
Fe - Iron
16.5%

Surface Characteristics

Rocky surface with continents, oceans, and active plate tectonics. Diverse biomes if life present.

Closest Real Exoplanet

LHS 1140 b84% similar
Orbiting LHS 1140
YoursLHS 1140 b
Mass4.80 × Earth5.60 × Earth
Radius1.53 × Earth1.73 × Earth
Density (composition)7.41 g/cm³5.96 g/cm³
Temperature262.2 K226.0 K
Starlight received0.75 × Earth0.43 × Earth
Star temperature4,450 K3,096 K
Discovered 2017 via transit · 49 light-years awaySource: NASA Exoplanet Archive
Moons
Moon 1rings1.1% - 1.5 radii

Inside the Roche limit (2.80 planet radii): torn apart into a ring system.

Moon 2stable0.0089% - 7.1 radii

Small and distant: a quiet, stable companion.

Moon 3receding0.0063% - 100.0 radii

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

Moon 4merged2.5% - 100.0 radii

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

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

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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