Mercury is #1 from the sun. it is tiny. it is the smallest.
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Desert World
None Activity
Why is this a Desert World?Your planet is a hot (445K), bone-dry silicate rock that kept its atmosphere - with no water cycle to wash the air, wind lofts a permanent dust veil over endless dune seas.
Desert worlds are the Tatooine/Arrakis archetype: enough rock to build a solid surface, enough air to carry dust, and too little hydrogen for oceans or rain. Heat bakes out any trace moisture, so nothing interrupts the wind's work - dune seas, wind-carved rock, scorching days.
Classification Criteria:
✓ Hydrogen: 0.0% (<5% - bone dry, no water cycle)✓ Temperature: 445K (300-500K hot band)✓ Silicon + Iron + Magnesium: 73.3% (>=30% - a real rocky surface)✓ Holds an atmosphere to carry the dust haze
Habitability ScoreUninhabitable
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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
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
0.10x Earth (5.97e+23 kg)
Radius
0.46x Earth (2,957 km)
Surface Gravity
0.46x Earth (4.6 m/s²)
Surface Temperature
445 K (172 °C / 342 °F)
Rotation Period
12.0 hours/day (faster than Earth)
Orbital Environment
Star Type
G-type (Yellow (Sun-like))
Distance from Star
0.39 AU (58.3 million km)
Orbital Period
89 days
Atmosphere
Thin, dusty CO₂-nitrogen atmosphere - permanent haze of wind-borne sand
Elemental Composition
Fe - Iron
26.7%
Si - Silicon
26.7%
Mg - Magnesium
20.0%
Surface Characteristics
Endless dune seas and wind-carved rock under a permanent dust haze - scorching days, freezing nights