EARTH : SOME IMPORTANT FACTORS

EARTH : SOME IMPORTANT FACTORS

Age4,550 Million Years

Mass5.967 x 10 to the power 24 kg

Volume1.083 x 10 to the power liters

Mean Density5.518 kg/lt

Total Surface Area510 million sq. km

Land Area29.2% of the total surface area

Water Area70.8% of the total surface area

Equatorial Diameter12,755 km

Polar Diameter12, 712 km

Escape Velocity11.2 km/sec

Highest Land PointMount Everest (8,852 m)

Lowest Land PointDead Sea (396m)

Greatest Ocean DepthMariana Trench (11,033)

Equatorial Circumference40,024 km

Polar Circumference40,024 km

Mean Surface Temperature14°C

Maximum distance from Sun (Aphelion)About 150 million km

Minimum distance from sun (Perihelion)About 147 million km

Rotation Speed23 hrs, 56 min, 40.91 sec

Revolution Speed365 days, 5 hrs, 45.51 sec

Dates when days & nights are equalMar, 21 (Vernal Equinox): Sept. 23 Autumnal Equinox)

Dates of longest days and shortest nightsJune 21 (Summer Solstice): Dec, 22 (Winter Solstice)