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Exploration of the planet Earth.
Discovery of rock, sand, 78% nitrogen and 21% oxygen atmosphere, Water and carbon-based life forms.
Details:
Epoch J2000
Aphelion distance: 152,097,701 km
(1.016 710 333 5 AU)
94,509,130 mi
Perihelion distance: 147,098,074 km
(0.983 289 891 2 AU)
91,402,725 mi
Semi-major axis: 149,597,887.5 km
(1.000 000 112 4 AU)
92,956,041 mi
Semi-minor axis: 149,576,999.826 km
(0.999 860 486 9 AU)
92,943,062 mi
Orbital circumference: 924,375,700 km
( 6.179 069 900 7 AU)
Eccentricity: 0.016 710 219
Sidereal period: 365.256 366 days
(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
min mean max
185 K 287 K 331 K
-88.3 °C 14 °C 57.7 °C
Adjectives: Terrestrial, Terran, Telluric, Tellurian, Earthly.
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TV Shows to Watch Online - Watch TV on the Computer Now! Posted By : Roger E. Davis |
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1/1/2008 - TV - Satellites
International WebTV dedicated to the world's concerns and issues of our
time. Founded in May 2007, E3.tv is operated by a team of professionals
with wide-ranging experiences in media, communication, TV production,
journalism, science and research directly involved in the production of
Public Service Announcements, news and top stories.
Archive [9]
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