Terre  

Terre

Terre
Orbital Characteristics of Earth

Caractéristiques orbitales

Périhélie: 147,098,074 km, 0.9832898912 AE
Aphélie: 152,097,701 km, 1.0167103335 AE
Demi-grand axe: 149,597,887.5 km, 1.0000001124 AE
Excentricité: 0.016710219
Période de révolution: 365.256366 jours
Période synodique:
Vitesse orbitale moyenne: 29.783 km/s
Anomalie moyenne:
Inclinaison: 1°34'43.3"
Longitude du nœud ascendant: 348.73936°
Argument du périhélie: 114.20783°

Satellites/Lunes: 1 (Moon)







Physical Characteristics of Earth

Caractéristiques physiques

Rayon équatorial: 6,378.1 km
Aplatissement: 0.0033528
Superficie: 510,072,000 km2
Volume: 1.0832073×1012 km3
Masse: 5.9736×1024 kg
Masse volumique moyenne: 5.5153 g/cm3
Gravité à la surface: 9.780327 m/s2
Vitesse de libération: 11.186 km/s
Sidereal rotation period: 0.99726968 d Earth days, 23h 56m 4.100s Earth hours
Inclinaison de l’axe: 23.439281°
Albédo moyen: 0.367
Température de surface: 185/331 K, -88/58 °C, -126/136 °F
Magnitude apparente:
Diamètre angulaire:


The Atmosphere of Earth

Atmosphère

Composition:
  • 78.08% Nitrogen (N2)
  • 20.95% Oxygen (O2)
  • 0.93% Argon
  • 0.038% Carbon dioxide (CO2)
  • ca. 1% water vapor (H2O)
  • 18.18 ppm Neon
  • 5.24 ppm Helium
  • 1.745 ppm Methane (CH4)
  • 1.14 ppm Krypton
  • 0.55 ppm Hydrogen (H2)


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