Vénus  

Vénus

Vénus
Orbital Characteristics of Venus

Caractéristiques orbitales

Périhélie: 107,476,259 km, 0.71843270 AE
Aphélie: 108,942,109 km, 0.72823128 AE
Demi-grand axe: 108,208,930 km, 0.723332 AE
Excentricité: 0.0068
Période de révolution: 224.70069 jours, 0.6151970 années
Période synodique: 583.92 jours
Vitesse orbitale moyenne: 35.02 km/s
Anomalie moyenne:
Inclinaison: 3.394 71°
Longitude du nœud ascendant: 76.67069°
Argument du périhélie: 54.85229°

Satellites/Lunes: 0



Physical Characteristics of Venus

Caractéristiques physiques

Rayon équatorial: 6,051.8 km (0.9488 x Terre)
Aplatissement: < 0.0002
Superficie: 4.60×108 km2 (0.902 x Terre)
Volume: 9.38×1011 km3 (0.857 x Terre)
Masse: 4.8685×1024 kg (0.815 x Terre)
Masse volumique moyenne: 5.204 g/cm3
Gravité à la surface: 8.87 m/s2
Vitesse de libération: 10.46 km/s
Sidereal rotation period: -243 Earth days, -5832 Earth hours
Inclinaison de l’axe: 177.3°
Albédo moyen: 0.65
Température de surface: 735 K, 462 °C, 864 °F
Magnitude apparente: -4.6
Diamètre angulaire: 9.7" - 66.0"


The Atmosphere of Venus

Atmosphère

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)



    Venus images:


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