EARTH SCIENCE

Platte Canyon High School
Bailey, Colorado

Useful Info

USEFUL INFORMATION
 Earth Parameters
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Mass
5.9763 x 1024 kg		 Radius (equator)
6378.245 km		 Sidereal Revolution
3.1558 x 107 s
365.256 days		 Tropical Revolution
365.242 days
Volume
1.08321   x 1012 km3		 Radius (mean)
6370.949 km		 Sidereal Rotation
23.9345 hrs
23h 56m 04s		 Solar Rotation
24.0000 hrs
Density
5.5170 g/cm3		 Radius (polar)
6356.8 km		 g
9.80665 m/s2
32.174 ft/s2		  
   
 		 Orbital Radius
mean:  1.49457 x 108 km
(9.28683 x 107 mi)
perihelion: 1.4709 x 108 m
aphelion: 1.5210 x 108 m
Oceanic Crust
avg. thickness = 7 km
seismic P-wave velocity = 7 km/second
density = 3.0 gm/cm3		 Continental Crust
30 - 50 km thickness
6 km/second P-wave velocity
2.7 gm/cm3 density		 Orbital Inclination
0º 0' 14"		 Orbital Velocity
mean: 29.78 m/s
maximum: 30.29 m/s
minimum: 29.29 m/s
Crust
thickness = 7 - 50 km		 Axial inclination
23º 27' or 23.45°		  
Mantle
thickness = 2900 km		    
Outer Core
thickness = 2250 km		    
Inner Core
radius = 1220 km		     
 
   
   Surface Pressure
 1014 mb
1 atomosphere

Total mass of atmosphere
5.1 x 1018 kg
Average temperature
288 K -15 C

Diurnal temperature range
283 K to 293 K  -  10 to 20 C
 
Wind speeds
0 to 100 m/s
 
Atmospheric composition
 (by volume, dry air): 
N2 -  78.084%
O2 - 20.946%
Ar - 9340 ppm
CO2 - 350 ppm
Ne - 18.18 ppm
He - 5.24 ppm
CH4 - 1.7 ppm
Kr - 1.14 ppm
H2 - 0.55 ppm
       
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