How Big Is The Earth
how big is Earth?
and what is the atmosphere like?
Equatorial radius: 6,378.137 km
Polar radius: 6,356.752 km
Equatorial circumference: 40,075.02 km
Meridional circumference: 40,007.86 km
Mean circumference: 40,041.47 km
Surface area: 510,065,600 km²
Land area: 148,939,100 km² (29.2 %)
Water area: 361,126,400 km² (70.8 %)
Volume: 1.0832073×1012 km³
Mass: 5.9736×1024 kg
Mean density: 5,515.3 kg/m³
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how big is Earth compare with other planets and stars?
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