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Habitability
30/ 100
Extremely Harsh

Hetha

by Borianis12
0
Low Activity
Why is this a Desert World?Your planet has an unusual composition that doesn't fit standard classifications, or lacks the elements needed for complex geological processes.
Barren worlds can form from uncommon element combinations or may be remnants of larger bodies that lost their atmospheres and volatile materials.
Classification Criteria:
Composition doesn't match standard planet typesMass: 0.4x EarthTemperature: 494K
Habitability ScoreExtremely Harsh
30
Contributing Factors
water20
Very dry - minimal water
geology60
Some geological activity provides slow nutrient cycling
rotation100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution
Organic Chemistry80
Core organic elements (CHNO) present
atmosphere70
Nitrogen atmosphere provides protection but not breathable
temperature15
Extremely hot - hostile to known life forms
magnetic Field30
No magnetic field - vulnerable to solar radiation

Physical Properties

Mass
0.40x Earth (2.39e+24 kg)
Radius
0.74x Earth (4,694 km)
This planet: 0.74× Earth radiusEarth: 1× (baseline)
Surface Gravity
0.74x Earth (7.2 m/s²)
Surface Temperature
494 K (221 °C / 430 °F)
Rotation Period
25.0 hours/day (slower than Earth)
This planet: 25 h/dayEarth: 24 h/day

Orbital Environment

Star Type
G-type (Yellow (Sun-like))
Distance from Star
0.33 AU (49.4 million km)
Orbital Period
69 days

Atmosphere

Thin, dusty CO₂-nitrogen atmosphere - permanent haze of wind-borne sand

Elemental Composition

Si - Silicon
28.4%
O - Oxygen
21.6%
Fe - Iron
17.0%

Surface Characteristics

Endless dune seas and wind-carved rock under a permanent dust haze - scorching days, freezing nights

Closest Real Exoplanet

Kepler-378 c87% similar
Orbiting Kepler-378
YoursKepler-378 c
Mass0.40 × Earth0.27 × Earth
Radius0.79 × Earth0.70 × Earth
Density (composition)4.45 g/cm³4.35 g/cm³
Temperature494.3 K414.0 K
Starlight received9.18 × Earth8.17 × Earth
Star temperature5,600 K4,661 K
Discovered 2014 via transit · 496 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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