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Entering orbit…
Habitability
30/ 100
Extremely Harsh

Venus

0

Venus Like

Moderate Activity
Why is this a Venus Like?Your planet has a thick CO₂ atmosphere creating a runaway greenhouse effect, with surface temperatures of 516K.
Venus-like planets experience runaway greenhouse warming where CO₂ traps heat, evaporating oceans and creating hostile conditions despite being in the habitable zone.
Classification Criteria:
✓ Temperature: 516K (500-800K range)✓ CO₂-rich atmosphere creating greenhouse effect
Habitability ScoreExtremely Harsh
30
Contributing Factors
water50
Water present but likely as steam
geology90
Active geology recycles nutrients and drives carbon cycle
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry50
Carbon and hydrogen present - organic chemistry possible
atmosphere14
Dense CO₂ atmosphere with extreme greenhouse effect (partially stripped by slow rotation)
temperature15
Extremely hot - hostile to known life forms
magnetic Field30
No magnetic field - vulnerable to solar radiation

Physical Properties

Mass
0.90x Earth (5.37e+24 kg)
Radius
0.97x Earth (6,151 km)
This planet: 0.97× Earth radiusEarth: 1× (baseline)
Surface Gravity
0.97x Earth (9.5 m/s²)
Surface Temperature
516 K (243 °C / 469 °F)
Rotation Period
2,000.0 hours/day (slower than Earth)
This planet: 2000 h/dayEarth: 24 h/day

Orbital Environment

Star Type
G-type (Yellow (Sun-like))
Distance from Star
0.72 AU (108 million km)
Orbital Period
223 days

Atmosphere

Dense CO₂ atmosphere with sulfuric acid clouds, extreme greenhouse effect

Elemental Composition

Si - Silicon
25.0%
C - Carbon
16.7%
H - Hydrogen
16.7%

Surface Characteristics

Rocky surface with volcanic plains, extreme pressure and heat

Closest Real Exoplanet

TOI-5716 b83% similar
Orbiting TOI-5716
YoursTOI-5716 b
Mass0.90 × Earth0.84 × Earth
Radius0.99 × Earth0.96 × Earth
Density (composition)5.10 g/cm³5.23 g/cm³
Temperature516.1 K400.0 K
Starlight received1.93 × Earth3.41 × Earth
Star temperature5,600 K3,436 K
Discovered 2025 via transit · 129 light-years awaySource: NASA Exoplanet Archive
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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