(figures in brackets state relation to earth)
mean distance from sun: 108.2 million km (0.72 AU)
period of revolution: 225 days
Rotational period: -243.0187 days
Tilt of axis: 177.36o
mass: 4.87*1024 kg (0.82)
mean diameter: 12,100 km (0.95)
mean density: 5.25 g/cm3 (0.96)
elements and combinations to be found: silicate, iron, nickle
surface structure: high mountains, deep rifts surface
temperature: 360°C to 470°C
atmosphere: 96% CO2 3% N2 0.14% H20 rest: O2, Ar, Ne, HCl, HF, H2S, CO, He, O
Atmospheric composition Carbon dioxide: 96% Nitrogen: 3+% Trace amounts of: Sulfur dioxide, water vapor, carbon monoxide, argon, helium, neon, hydrogen chloride, and hydrogen fluoride.
pressure on surface: 90 atm
The dense veil of clouds lets Venus appear in a bright light. It is the only planet in the solar system where sun rises at west and sets at east. In a height of 60 km (the clouds' upper border) temperature decreases to -30°C, whereas the greenhouse effect heats the surface up to 400°C. Storms on Venus's surface can attain a speed of 300 to 400 km/h. Rift Halley is 3 to 4 km deep.