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|
Planet Earth
Famous "Blue
Marble" photograph of the Earth, taken from
Apollo 17. |
|
Orbital characteristics |
|
Epoch
J2000 |
|
Aphelion distance: |
152,097,701 km
(1.016 710 333 5
AU)
94,509,130 miles |
|
Perihelion distance: |
147,098,074 km
(0.983 289 891 2 AU)
91,402,725 miles |
|
Semi-major axis: |
149,597,887.5 km
(1.000 000 112 4 AU)
92,956,041 miles |
|
Semi-minor axis: |
149,576,999.826 km
(0.999 860 486 9 AU)
92,943,062 miles |
| Orbital
circumference: |
924,375,700 km
( 6.179 069 900 7 AU) |
|
Eccentricity: |
0.016 710 219 |
|
Sidereal period: |
365.256 366 day
(1.000 017 5 yr) |
| Avg.
orbital speed: |
29.783 km/s
(107,218 km/h) |
| Max.
orbital speed: |
30.287 km/s
(109,033 km/h) |
| Min.
orbital speed: |
29.291 km/s
(105,448 km/h) |
|
Inclination: |
0
(7.25° to
Sun's equator) |
|
Longitude of ascending node: |
348.739 36° |
|
Argument of perihelion: |
114.207 83° |
|
Satellites: |
1 (the Moon) |
|
Physical characteristics |
|
Ellipticity: |
0.003 352 9 |
| Mean
radius: |
6,372.797 km |
|
Equatorial radius: |
6,378.137 km |
|
Polar radius: |
6,356.752 km |
|
Aspect Ratio: |
0.996 647 1 |
|
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: |
1.083 207 3×1012 km³ |
|
Mass: |
5.9736×1024 kg |
| Mean
density: |
5,515.3 kg/m³ |
| Equatorial
surface gravity: |
9.780 1 m/s²
(0.997 32 g) |
|
Escape velocity: |
11.186 km/s (≅39,600 km/h) |
|
Sidereal rotation period: |
0.997 258 d
(23h 56m 04.09054s) |
| Rotation velocity at equator: |
465.11 m/s |
|
Axial tilt: |
23.439 281° |
|
Right ascension of North pole: |
undefined° |
|
Declination of North pole: |
+90° |
|
Albedo: |
0.367 |
Surface
temp.:
Kelvin
Celsius |
|
| Adjectives: |
Terrestrial, Terran, Telluric, Tellurian, Earthly |
|
Atmosphere |
| Surface
pressure: |
101.3 kPa
(MSL) |
| Composition: |
78.08% N2
20.95% O2
0.93% Argon
0.038% Carbon
dioxide
Trace
water vapor (varies with
climate) |
PLANET EARTH VIDEOS & LINKS
PLANET EARTH
Continents of the
World
Africa, Antarctica,
Asia, Australia,
Europe,
Central America,
North America,
South America,
Oceania,
The United States
If You Are Interested in the
Variety of Fun Ways You Can Win Prizes or Have You or Your Work
Showcased, Then Click On This
"Have Fun & Earn
Prizes"
Link Page!
SITE MAP
|
|
|
|
Director of OMP
My
name is Vinny.
I am
innately Promethean, Philosophic in nature, and philanthropic in
actual deed
I am
also an ex-marine and an ex-agent of the federal government.
My mission is to raise money for charities, help
facilitate individuals and organizations, and generate more money for
their good causes.
I hope to meet
intelligent life while I
continue my
education.
I like to share
effective life strategies with other people like myself.
By emphasizing the
importance of networking, collaborating, sharing information and
influence, we are likely to serve the betterment of mankind.
I believe it is
important for each of us to become fully actualized. |
|
