Some facts about the Earth

Age 4,550 million years
Mass 5.976 x 10kg
Volume 1.083 x 10 litres
Mean Density 5.518 kg/lt
Total Surface Area 510 million sq.km
Land Area 29.2% of the total surface area
Water Area 70.8% of the total surface area
Equatorial Diameter 12,755 km
Polar Diameter 12,712 km
Escape Velocity 11.2 km/sec
Highest Land Point Mount Everest (8,852 m)
Lowest Land Point Dead Sea (396 m)
Greatest Ocean Depth Mariana Trench (11,033 m)
Equatorial Circumference 40,076 km
Polar Circumference 40,024 km
Mean Surface Temperature 14C
Maximum distance from sun
(Aphelion)
About 152 million km
Minimum distance from sun
(Perihelion)
About 147 million km
Rotation Speed 23 hrs, 56 min & 40.91 sec
Revolution Speed 365 days, 5hrs & 45.51 sec
Dates when days & nights are equal Mar,21 (Vernal Equinox); Sept. 23 (Autumnal
Equinox)
Dates of longest days and shortest nights June 21 (Summer Solstice); Dec, 22 (Winter Solstice)

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