Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000eaa..booke4884.&link_type=abstract
"Encyclopedia of Astronomy and Astrophysics, Edited by Paul Murdin, article 4884. Bristol: Institute of Physics Publishing, 2001
Astronomy and Astrophysics
Astrophysics
Theoretical Concepts And Tools, Theoretical Concepts
Scientific paper
The semi-major axis of the elliptical orbit of the Earth. The astronomical unit (abbreviation: AU), is also described as the `mean' distance between the Earth and the Sun, where `mean' in this context refers to the average of the maximum (aphelion) and minimum (perihelion) distances between the Earth and the Sun. The currently accepted value for the astronomical unit is 149 597 870 km....
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