Earth Facts
Mean distance from the Sun: 1 AU (149,600,000 km/ 92,960,000 mi) Length of year: 365.26 days Rotation period: 23.93 hours Mean orbital velocity: 29.79 km/sec (18.6 mi/sec) Inclination of axis: 23.45° Average temperature: 59° F (15° C) Diameter: (equatorial) 12,756 km (7,926 mi) Number of observed satellites: 1
More detailed physical data is available on the Planetary Physical Data page.
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