Earth

This article, about a planet, is a stub. You can help Orbiterwiki by expanding it. Earth Earth in Orbiter Designation Name Earth Reference body Sun Number of satellites 1 Physical parameters* Mass 5.974×1024 kg Mean Radius 6.371×106 m Gravitational moments J2=1082.6269×10-6 J3=-2.51×10-6 J4=-1.6×10-6 J5-0.15×10-6 Siderial day 8.616×104 s Orbital period 3.159×107 s (365.625 days) Obliquity of ecliptic 23.44° Atmosphere Yes Atmosphere* Atmosphere model J71G Surface Pressure 101.3 KPa Surface Density 1.225 kg/m3 Specific gas constant 286.91 J/(K kg) Specific heat ratio 1.40 Osculating elements (ecliptic frame)* Semi-major axis 1.4971×1011 m Eccentricity 0.015958 Inclination 0° Longitude of ascending node 141.13° Longitude of periapsis 103.41° Mean Longitude 260.75° Ecliptic position from primary* Longitude 261.444° Latitude 0.003° Radial distance 1.519×1011 m Note *Elements given are from Orbiter 2016 Earth is the planet we live on. It is the third planet from the Sun. It is the only planet known to have life on it. Lots of scientists think the earth formed around 4.5 billion years ago. It is one of four rocky planets on the inside of the Solar System. The other three are Mercury, Venus and Mars. See also Addons for Earth Natural satellites Moon External links Earth at Wikipedia The Solar System Central star Sun (Sol) Planets Mercury - Venus - Earth - Mars - Jupiter - Saturn - Uranus - Neptune Natural satellites Moon - Phobos - Deimos - Io - Europa - Ganymede - Titan - more... Add-ons Planets - Dwarf Planets - Small objects - Natural satellites - Alternative star systems