Planet Earth Data

Orbital Elements
Semimajor Axis:1.000003 AU
Argument of Perifocus:102.9°
Longitude of Ascending Node:0.0°
Mean Motion:0.98560912° per day
Time of Periapsis:2007 Jan 15, 00:30 UT
Orbital Period:365.25636 days
Mass:1.0000 ME
Equatorial Radius:1.0000 RE
Rotational Inclination:23.45°
Rotational Period:0.9972579 days
Mean Temperature:270°K
Mean Surface Pressure:1.0 bar
Atmospheric Composition:N2 77%, O2 21%, Ar 1%, H2O & others in trace amounts


Satellite Name Orbital Semimajor Axis (km) Orbital Period (days) Mass (kg) Discovery
Discoverer NameAnnouncement Date
Moon (Luna) 384,40027.3215827.349·1022 ?Prehistoric

1 AU = 1.49597870691·1011 m            1 year = 365.25 days = 31557600 s
1 ME = 5.9742·1024 kg            1 RE = 6.378136·106 m

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This page was last updated: 2006 Apr 8
You may contact Alex at: willman@Princeton.EDU

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