]> 2010-09-08T23:32:02-07:00 AlphaOne:Earth Terra, World, The World 23.439281 0.016710219 7.25 1.4894E+14 5.973715651135E+24 6378100 31557600.013971 Terrestrial 149598000104.52 5.10072E+14 3.61132E+14 Origin AlphaOne:Human AlphaOne:First human in space AlphaOne:First satellite in orbit AlphaOne:Space Age AlphaOne:Information age AlphaOne:First humans on Moon AlphaOne:Sol Orbits AlphaOne:AlphaOne AlphaOne:Milky Way AlphaOne:Sol system Location Water area (m²) m² Water area Surface area (m²) m² Surface area Semi major axis (m) m Semi major axis Planet class Orbital period (s) s Orbital period Mean Radius (m) m Mean Radius Mass (kg) kg Mass Land area (m²) m² Land area Inclination (deg) deg Inclination Eccentricity Axial tilt (deg) deg Axial tilt Also known as Planets