light year
Apparence
:
Étymologie
[modifier le wikicode]Locution nominale
[modifier le wikicode]light year \ˈlaɪt.jɪə\ (Royaume-Uni), \ˈlaɪt.jɪɹ\ (États-Unis)
- (Astronomie) Année-lumière.
In the “Astron. Nachrn.” [Astronomische Nachrichten] (1683) [sic : 1868] is an elaborate paper on the proper motion of 70 p Ophiuchi, by Mr. W. Schur [„70 p Ophiuchi. Untersuchung über die Bahn dieses Doppelsterns“, Astronomische Nachrichten, vol. LXXI, no. 1 (February), 1868, p. 1]. He makes its distance from the solar system 1,273,000 times the earth's diameter [sic : distance] from the sun, and its distance measured in "light years" (as the Germans call the space traversed by light in a year) as 20.1.
— (“Notes and Memoranda”, in The Student and Intellectual Observer of Science, Literature and Art, volume I, Groombridge and Sons, London, April 1868, p. 240)
Variantes orthographiques
[modifier le wikicode]Prononciation
[modifier le wikicode]- \ˈlaɪt.jɪɹ\ (États-Unis)
- \ˈlaɪt.jɪə\ (Royaume-Uni)
- Varsovie (Pologne) : écouter « light year [Prononciation ?] »