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mégaparsec — n. m. ASTRO Unité de longueur valant un million de parsecs (3 261 500 années de lumière) … Encyclopédie Universelle
megaparsec — (Mpc) the longest distance unit in common use, the megaparsec is used by astronomers studying the most distant quasars and galaxies. One megaparsec equals one million parsecs, 3.2616 million light years or 30.857 x 1018 kilometers (30.857… … Dictionary of units of measurement
Megaparsec — Einheit Norm Astronomische Maßeinheiten Einheitenname Parsec Einheitenzeichen pc Dimensionsname Länge Dimensionssymbol L In … Deutsch Wikipedia
megaparsec — noun Etymology: International Scientific Vocabulary Date: 1920 a unit of measure for distances in intergalactic space equal to one million parsecs … New Collegiate Dictionary
Mégaparsec — Parsec Pour les articles homonymes, voir Parsec (homonymie). Le parsec (symbole pc) est une unité de longueur utilisée en astronomie. Son nom vient de la contraction de « parallaxe seconde ». Cette unité résulte de l’utilisation d’une… … Wikipédia en Français
megaparsec — meg·a·par·sec (mĕgʹə pär sĕk) n. One million parsecs. * * * … Universalium
megaparsec — noun A unit of distance equal to a million parsecs … Wiktionary
megaparsec — me·ga·pàr·sec s.m.inv. TS astron. unità di misura delle distanze stellari equivalente a 1 milione di parsec, cioè a 106 parsec {{line}} {{/line}} DATA: 1957. ETIMO: comp. di mega e parsec … Dizionario italiano
megaparsec — mega·parsec … English syllables
Megaparsec — One million parsecs. A persec is the distance at which a star appears to have an annual parallax of 1 of arc (1/3600° ). Parsec is an abbreviation of Parallax Second. A parsec equals 3.26 light years, or 206,265 Astronomical Units. Also called … The writer's dictionary of science fiction, fantasy, horror and mythology
