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The Earth. Exploration of....

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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