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Entering orbit…
Habitability
12/ 100
Uninhabitable

boring planet

0

Rocky Terrestrial

None Activity
Why is this a Rocky Terrestrial?Your planet is dominated by silicate (2.7%) and iron (73.0%) content, forming a rocky terrestrial body.
Rocky terrestrial planets are primarily composed of silicate rocks and metals. They're the most common type of small planet in the universe.
Classification Criteria:
✓ Silicon: 2.7% + Iron: 73.0% + Magnesium: 0.0%✓ Mass: 0.3x Earth (terrestrial range)
Habitability ScoreUninhabitable
12
Contributing Factors
water0
No water - the recipe has no hydrogen and oxygen to form it
geology30
Geologically dead - no nutrient recycling
rotation60
Fast rotation - strong global wind patterns and weather systems, but manageable
Organic Chemistry20
Limited organic chemistry potential
atmosphere10
No atmosphere - exposed to radiation and temperature extremes
temperature70
Challenging but potentially habitable temperature
magnetic Field30
No magnetic field - vulnerable to solar radiation

Physical Properties

Mass
0.30x Earth (1.79e+24 kg)
Radius
0.67x Earth (4,265 km)
This planet: 0.67× Earth radiusEarth: 1× (baseline)
Surface Gravity
0.67x Earth (6.6 m/s²)
Surface Temperature
311 K (38 °C / 100 °F)
Rotation Period
12.0 hours/day (faster than Earth)
This planet: 12 h/dayEarth: 24 h/day

Orbital Environment

Star Type
M-type (Red Dwarf)
Distance from Star
0.16 AU (23.9 million km)
Orbital Period
43 days

Atmosphere

Minimal or none

Elemental Composition

Fe - Iron
73.0%
Ni - Nickel
24.3%
Si - Silicon
2.7%

Surface Characteristics

Rocky surface with impact craters, possible volcanic features

Closest Real Exoplanet

Proxima Cen d94% similar
Orbiting Proxima Cen
YoursProxima Cen d
Mass0.30 × Earth0.26 × Earth
Radius0.73 × Earth0.69 × Earth
Density (composition)4.22 g/cm³4.32 g/cm³
Temperature310.8 K282.0 K
Starlight received1.56 × Earth1.81 × Earth
Star temperature3,050 K2,900 K
Discovered 2025 via radial velocity · 4 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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