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


  • 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)

    retour a la page d'accueil

  • NASA Breaking News

    New NASA Experiments, Research Headed to International Space Station
    Major experiments that will look into the human body and out into the galaxy are on their way to the International Space Station aboard a SpaceX Dragon spacecraft following its 5:07 p.m. EDT launch aboard a Falcon 9 rocket.

    Vice President Pence to Visit NASA’s Johnson Space Center for Astronaut Class Announcement
    Vice President Mike Pence will visit NASA's Johnson Space Center in Houston on Wednesday, June 7, to welcome America’s newest astronaut candidates, chosen from more than 18,000 applicants to carry the torch for future human space exploration.

    Media Invited to Demonstrations of NASA Drone Traffic Management Technologies
    NASA’s three-week national campaign to further test and refine its Unmanned Aircraft Systems (UAS) Traffic Management (UTM) technologies continues, and media are invited to see these technologies in action Tuesday, June 6, at four Federal Aviation Administration (FAA) test sites across the country.

    U.S. Cargo Ships to Depart, Arrive at International Space Station
    With the delay of SpaceX’s eleventh commercial resupply services mission to the International Space Station to Saturday, June 3, two NASA commercial provider cargo ships now will pass each other in orbit to provide services to the space station.

    NASA TV Coverage Set for Return of Two Space Station Crew Members
    Two crew members on the International Space Station are scheduled to depart the orbital outpost Friday, June 2. Coverage of their departure and return to Earth will air live on NASA Television and the agency’s website beginning Thursday, June 1, with the space station change of command ceremony.

    NASA to Announce New Astronaut Class on June 7
    After evaluating a record number of applications, NASA will introduce its new astronaut candidates at 2 p.m. EDT Wednesday, June 7, from the agency’s Johnson Space Center in Houston.

    NASA to Make Announcement About First Mission to Touch Sun
    NASA will make an announcement about the agency’s first mission to fly directly into our sun’s atmosphere during an event at 11 a.m. EDT Wednesday, May 31, from the University of Chicago’s William Eckhardt Research Center Auditorium. The event will air live on NASA Television and the agency’s website.

    NASA to Air Launch of Next International Space Station Resupply Mission
    NASA commercial cargo provider SpaceX is targeting its eleventh commercial resupply services mission to the International Space Station for 5:55 p.m. EDT Thursday, June 1. Launch coverage will begin on NASA Television and the agency’s website at 5:15 p.m., followed by the post-launch news conference at 7:30 p.m.

    A Whole New Jupiter: First Science Results from NASA’s Juno Mission
    Early science results from NASA’s Juno mission to Jupiter portray the largest planet in our solar system as a complex, gigantic, turbulent world, with Earth-sized polar cyclones, plunging storm systems that travel deep into the heart of the gas giant.

    James Webb Space Telescope Available for Media Viewing at NASA’s Johnson Space Center
    Media are invited to NASA’s Johnson Space Center in Houston to view the James Webb Space Telescope and talk to experts about upcoming cryogenic vacuum tests at 10:15 a.m. CDT Wednesday, May 31.