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Venus

Venus
Orbital Characteristics of Venus

Orbital Characteristics

Perihelion: 107,476,259 km, 0.71843270 AE
Aphelion: 108,942,109 km, 0.72823128 AE
Semi-major axis: 108,208,930 km, 0.723332 AE
Eccentricity: 0.0068
Orbital period: 224.70069 days, 0.6151970 years
Synodic period: 583.92 days
Average orbital speed: 35.02 km/s
Mean anomaly:
Inclination: 3.394 71°
Longitude of ascending node: 76.67069°
Argument of perihelion: 54.85229°

Satellites/moons: 0

Physical Characteristics of Venus

Physical Characteristics

Equatorial radius: 6,051.8 km (0.9488 x Earth)
Flattening: < 0.0002
Surface area: 4.60×108 km2 (0.902 x Earth)
Volume: 9.38×1011 km3 (0.857 x Earth)
Mass: 4.8685×1024 kg (0.815 x Earth)
Mean density: 5.204 g/cm3
Equatorial surface gravity: 8.87 m/s2
Escape velocity: 10.46 km/s
Sidereal rotation period: -243 Earth days, -5832 Earth hours
Axial tilt : 177.3°
Albedo: 0.65
Average surface temperatures: 735 K, 462 °C, 864 °F
Apparent magnitude: -4.6
Angular diameter: 9.7" - 66.0"
The Atmosphere of Venus

The Atmosphere

Composition:
  • ~96.5% Carbon dioxide (CO2)
  • ~3.5% Nitrogen (N2)
  • 0.015% Sulfur dioxide (SO2)
  • 0.007% Argon
  • 0.002% Water vapor (H2O)
  • 0.001 7% Carbon monoxide (CO)
  • 0.001 2% Helium
  • 0.000 7% Neon
  • trace Carbonyl sulfide (COS)
  • trace Hydrogen chloride (HCl)
  • trace Hydrogen fluoride (HF)

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