Convertir unité astronomique en mètre

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Vice versa: mètre en unité astronomique

unité astronomique

La astronomical unit (symbol: AU) est une unité de length approximativement égal à the mean distance between Earth and the Sun, defined exactement as 149,597,870,700 metres. Il est the primary unit utilisé en expressing distances within the Solar System, tel que the orbital radii of planets. The astronomical unit was formally defined in its current exact value by the International Astronomical Union in 2012. 


mètre

La metre (Commonwealth spelling and BIPM spelling) or meter (American spelling) (from the French unit mètre, from the Greek noun μετρούν, "measure") is the unité de base de longueur dans le Système international d'unités (SI) (SI). The unité SI symbol is m. Le mètre est défini comme the length of the path travelled by light in a vacuum in 1/299,792,458 of a second.

Le mètre was à l'origine defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximativement 40000 km. In 1799, the metre was redefined in terms of a prototype metre bar (the actual bar used was changed in 1889). In 1960, the metre was redefined in terms of a certain number of wavelengths of a certain emission line of krypton-86. In 1983, the current definition a été adopté. 


Table de conversion unité astronomique en mètre
unité astronomiquemètre
11.496E+11
22.992E+11
57.48E+11
101.496E+12
253.74E+12
507.48E+12
1001.496E+13
5007.48E+13
10001.496E+14

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