light year

(1868) Composé de light et de year.

light year \ˈlaɪt.jɪə\ (Royaume-Uni), \ˈlaɪt.jɪɹ\ (États-Unis)

1. (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)

     La traduction en français de l’exemple manque. (Ajouter)

• lightyear
• light-year

• \ˈlaɪt.jɪɹ\ (États-Unis)
• \ˈlaɪt.jɪə\ (Royaume-Uni)
• Varsovie (Pologne) : écouter « light year [Prononciation ?] »