World Facts

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Description

Our world, also referred to as Earth, Terra, Gaia or Blue Planet, is the third planet from the Sun, and the fifth-largest of the eight planets in the Solar System. The sun is one of estimated 200 to 400 billion stars in a minor spiral galaxy, known to the locals as Milky Way. In the Milky Way our planet is positioned at the inner rim of the Orion Arm. The Milky Way itself is a galaxy part of the Virgo Supercluster, a group of galaxies in our known Universe.

Key Facts

Location:
Local Universe -> Virgo Supercluster -> Milky Way -> Orion Arm -> Solar System
Mean distance to sun:
149.6 million km
Closest stars next to the sun:
Proxima Centauri, Rigil Kentaurus and Alpha Centauri B (all in a distance of about 4.3 light years)
Nearest planetary neighbors:
Venus and Mars
Mean radius:
6,371 km
Mean diameter:
12,742 km
Equatorial perimeter:
40,075,017 km
Age:
Appr. 4.54 billion years
Surface area:
510,072,000 km² total (100%)
148,940,000 km² land (29.2%)
361,132,000 km² water (70.8%)
Continents:
7 (North America, South America, Europe, Africa, Asia, Australia & Oceania, Antarctica)
Highest point on surface:
Mount Everest (8,850 m)
Longest river:
Nile (6,650 km)
Life on Earth:
Appr. 30 million different species including animals, plants, fungi and bacteria,
1.5 million animal species
Population:
7 billion
Population density:
46.9/km² considering only land surface area
Most densely populated country:
Monaco with 15,142/km²
Least densely populated country:
Mongolia 1.76/km²
Biggest city:
Tokyo-Yokohama (population urban area 37,239,000)
Souvereign states:
206 (recognized by the United Nations)

Earth Symbol:
Earth Symbol


Notes:


Decimal mark is a dot ("."), thousands separator is comma (",")!
Numbers are valid for year 2012!

Links


Logo Wikipedia


Wikipedia - Earth:

http://en.wikipedia.org/wiki/Earth


Wikipedia - Continents:

http://en.wikipedia.org/wiki/Continents


Wikipedia - List of sovereign states:

http://en.wikipedia.org/wiki/List_of_sovereign_states


Wikipedia - List of sovereign states by continent:

http://en.wikipedia.org/wiki/List_of_sovereign_states_and_dependent_territories_by_continent


Wikipedia - List of rivers by length:

http://en.wikipedia.org/wiki/List_of_rivers_by_length


Wikipedia - World largest cities:

http://en.wikipedia.org/wiki/World's_largest_cities


Wikipedia - Seven Summits:

http://en.wikipedia.org/wiki/Seven_Summits


Schlesser