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Entering orbit…
Habitability
44/ 100
Marginal

Terrarius

0

Earth Like

Magnetic FieldModerate Activity
Why is this a Earth Like?Your planet has a balanced composition with all CHNOPS elements, proper mass (1.0x Earth), and sits in the habitable zone at 0.78 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: 1.0x Earth (0.5-2.0x range)✓ Temperature: 269K (250-320K range)✓ Magnetic field present✓ Distance: 0.78 AU (habitable zone)
Habitability ScoreMarginal
44
Contributing Factors
water50
Limited water content — shielded under ice and rock, a subsurface refuge could outlast the blast
geology100
Active geology recycles nutrients and drives carbon cycle (tidal flexing sustains geologic activity)
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry80
Core organic elements (CHNO) present
atmosphere40
Nitrogen-oxygen atmosphere - breathable and protective (partially stripped by slow rotation)
temperature75
Challenging but potentially habitable temperature (large moon stabilizes the axial tilt - steady seasons)
magnetic Field100
Magnetic field provides radiation protection (a large close moon may help stir the core dynamo (speculative)) — but the remnant's shock fronts flood this orbit with cosmic rays

Physical Properties

Mass
1.00x Earth (5.97e+24 kg)
Radius
1.00x Earth (6,371 km)
This planet: 1.00× Earth radiusEarth: 1× (baseline)
Surface Gravity
1.00x Earth (9.8 m/s²)
Surface Temperature
269 K (-5 °C / 24 °F)
Rotation Period
24.0 hours/day
This planet: 24 h/dayEarth: 24 h/day

Orbital Environment

Star Type
SNR-type (Supernova Remnant)
Distance from Star
0.78 AU (117 million km)
Orbital Period
213 days

Atmosphere

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

Elemental Composition

O - Oxygen
31.3%
Si - Silicon
25.0%
N - Nitrogen
12.5%

Surface Characteristics

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

Closest Real Exoplanet

TOI-700 d93% similar
Orbiting TOI-700
YoursTOI-700 d
Mass1.00 × Earth1.25 × Earth
Radius1.00 × Earth1.07 × Earth
Density (composition)5.50 g/cm³5.62 g/cm³
Temperature268.6 K269.0 K
Starlight received0.82 × Earth0.85 × Earth
Star temperature— 3,459 K
Discovered 2020 via transit · 101 light-years awaySource: NASA Exoplanet Archive
Moons
Moon 1receding1.1% - 7.4 radii

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

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

+5 temperature: large moon stabilizes the axial tilt - steady seasons+10 geology: tidal flexing sustains geologic activity+5 magneticField: a large close moon may help stir the core dynamo (speculative)
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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