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you are here : HoloGuides Home >> Knowledge >> Planets >> Earth
Facts
  age
  ~4.65 billion [years]
  inclination equator - orbit
  23° 27' = 23.45°
  solar system
  distance to sun : 149 597 890 [km]
  symbol
  size
  mean radius : 6 371 [km]
polar axis
.circumference : 39 940.62 [km]
.radius : 6 356.752 [km]
equator
.circumference : 40 075 [km]
.radius : 6 378.136 [km]
  core
  nickel-iron
Planet Earth
  Animals
   
  Atmosphere
  Nitrogen N2: 77%
Oxygen O2: 21%
other : 2%
  Canyons
   
  Caves
   
  Deserts
  Sahara, ...
   more about deserts
  Forests
  Brasilian Rainforest, 
  Geyser
   
  Glaciers
   
  Lakes
   
  Magnetic field
   
  Mountains
  Annapurna, Everest, Uluru,...
  more about mountains
  Oceans
  Atlantic, Pacific, Indian,...
  guide oceans
  Plants
   
  Rapids
   river rapids
  Rivers
 

guide rivers

  Seas
  Mediterranean sea, Caspian sea, ...
 

more seas

  Volcanoes
  Etna, St Helen, Vesuvius,...
  guide volcanoes
  Waterfalls
  Angel Falls, Niagara Falls,...
  guide waterfalls
Topics
  Environment
  -
  Life
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Internet
  Clubs
  -
  NewsGroups
 
  WebLinks
  -
Glossary
   
   
   
   
   
   
   

 

May 4, 2002

This page updated

WebLinks

  facts NASA earth

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