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[nb 1] Earth's orbital speed averages 29.78 km/s (19 mi/s; 107,208 km/h; 66,616 mph), which is fast enough to cover the planet's diameter in 7 minutes and the distance to the Moon in 4 hours. [3] The point towards which the Earth in its solar orbit is directed at any given instant is known as the "apex of the Earth's way".
Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes and 4 seconds with respect to other distant stars . Earth's rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth's rotation.
This is an accepted version of this page This is the latest accepted revision, reviewed on 24 February 2025. There are 4 pending revisions awaiting review. Scientific projections regarding the far future Several terms redirect here. For other uses, see List of numbers and List of years. Artist's concept of the Earth 5–7.5 billion years from now, when the Sun has become a red giant While the ...
In 1931 Wiley Post and navigator Harold Gatty made the first circumnavigation in a single-engined aircraft, completing a west to east journey within the Northern hemisphere and travelling 15,474 miles (24,903 km) in 8 days, 15 hours and 51 minutes.
Towards the end of the 17th century, Ole Rømer connected the mile to the circumference of the earth, and defined it as 12000 alen. This definition was adopted in 1816 as the Prussian Meile. The coordinated definition from 1835 was 7.532 km. Earlier, there were many variants, the most commonplace the Sjællandsk miil of 17600 fod or 11.130 km.
But the orbit of the Earth is an ellipse not centered on the Sun, and its speed varies between 30.287 and 29.291 km/s, according to Kepler's laws of planetary motion, and its angular speed also varies, and thus the Sun appears to move faster (relative to the background stars) at perihelion (currently around 3 January) and slower at aphelion a ...
Earth's circumference is the distance around Earth. Measured around the equator, it is 40,075.017 km (24,901.461 mi). Measured passing through the poles, the circumference is 40,007.863 km (24,859.734 mi). [1] Treating the Earth as a sphere, its circumference would be its single most important measurement. [2]
67 days, 12 hours, 3 minutes 18 March 1890 24 May 1890 By ships and trains, from Tacoma, Washington [8] [10] George Francis Train: 64 days 9 May 1891 12 July 1891 By ships and trains, from Fairhaven, Washington [8] J. Willis Sayre: 54 days 9 hours and 42 minutes 1903 1903 From Seattle, via Trans-Siberian Railway. [11]