Touch

This article is about the planet. For other uses, see Earth (disambiguation). Earth | "The Blue Marble" photograph of Earth, taken from Apollo 17 | Designations | Alternative names | Tellus or Terra,[note 1] Gaia | Orbital characteristics | Epoch J2000.0[note 2] | Aphelion | 152,098,232 km
1.01671388 AU[note 3] | Perihelion | 147,098,290 km
0.98329134 AU[note 3] | Semi-major axis | 149,598,261 km
1.00000261 AU[1] | Eccentricity | 0.01671123[1] | Orbital period | 365.256363004 days[2]
1.000017421 yr | Average orbital speed | 29.78 km/s[3]
107,200 km/h | Mean anomaly | 357.51716°[3] | Inclination | 7.155° to Sun's equator
1.57869°[4] to invariable plane | Longitude of ascending node | 348.73936°[3][note 4] | Argument of perihelion | 114.20783°[3][note 5] | Satellites | 1 natural (the Moon),
8,300+ artificial (as of 1 March 2001)[5] | Physical characteristics | Mean radius | 6,371.0 km[6] | Equatorialradius | 6,378.1 km[7][8] | Polar radius | 6,356.8 km[9] | Flattening | 0.0033528[10] | Circumference | 40,075.017 km (equatorial)[8]
40,007.86 km (meridional)[11][12] | Surface area | 510,072,000 km2[13][14][note 6] 148,940,000 km2 land (29.2 %)361,132,000 km2 water (70.8 %) | Volume | 1.08321×1012 km3[3] | Mass | 5.9736×1024 kg[3]3.0×10−6 Suns | Mean density | 5.515 g/cm3[3] | Equatorial surface gravity | 9.780327 m/s2[15]
0.99732 g | Escape velocity | 11.186 km/s[3] | Sidereal rotation period | 0.99726968 d[16]
23h 56m 4.100s | Equatorial rotation velocity | 1,674.4 km/h (465.1 m/s)Template:Convert/track/abbr/onTemplate:Convert/track/adj/[17] | Axial tilt | 23°26'21".4119[2] | Albedo | 0.367 (geometric)[3]0.306 (Bond)[3] | Surface temp. | min | mean | max | Kelvin | 184 K[18] | 288 K[19] | 330 K[20] | Celsius | −89.2 °C | 15 °C | 56.7 °C | | Atmosphere | Surfacepressure | 101.325 kPa (MSL) | Composition | 78.08% nitrogen (N2)[3] (dry air)
20.95% oxygen (O2)
0.93% argon