quasi stellar galaxies

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• GALAXIES — L’observation à l’œil nu d’un ciel constellé d’étoiles montre que celles ci ne sont pas réparties au hasard: elles tendent à se regrouper en une longue écharpe laiteuse qui parcourt la voûte céleste d’un bord à l’autre de l’horizon, et que nos… …   Encyclopédie Universelle

• КВАЗАРЫ — (англ. quasar, сокр. от quasi stellar radiosource квазизвёздный источник радиоизлучения), мощные внегалактич. источники эл. магн. излучения; представляют собой активные ядра далёких галактик. Открыты в 1960 как звездообразные источники… …   Физическая энциклопедия

• cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …   Universalium

• List of the most distant astronomical objects — This article documents the farthest known astronomical objects, and the time periods in which they were so classified. Contents 1 List of most distant objects by type 2 Most distant astronomical object recordholders 3 List of most distant objects …   Wikipedia

• Quasar — This article is about the astronomical object. For other uses, see Quasar (disambiguation). Artist s rendering of ULAS J1120+0641, a very distant quasar powered by a black hole with a mass two billion times that of the Sun[1]. Credit: ESO/M.… …   Wikipedia

• List of astronomy acronyms — This is a compilation of acronyms commonly used in astronomy. Most of the acronyms are drawn from professional astronomy and are used quite frequently in scientific publications. However, a few of these acronyms are frequently used by the general …   Wikipedia

• Quasar — Pour les articles homonymes, voir Quasar (homonymie). Vue d artiste du quasar GB1508 Un Quasar, « source de rayonnement quasi stellaire », (quasi stellar radio source en …   Wikipédia en Français

• astronomy — /euh stron euh mee/, n. the science that deals with the material universe beyond the earth s atmosphere. [1175 1225; ME astronomie ( < AF) < L astronomia < Gk. See ASTRO , NOMY] * * * I Science dealing with the origin, evolution, composition,… …   Universalium

• galaxy — /gal euhk see/, n., pl. galaxies. 1. Astron. a. a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space. b. (usually cap.) See Milky Way. 2. any large and brilliant or impressive… …   Universalium

• quasar — [ kazar ] n. m. • 1965; mot angl. 1964, abrév. de quasi stellar radio source « source d émission radio quasi stellaire » ♦ Astron. Astre d apparence stellaire, source d ondes hertziennes (radiosource) dont l émission est supérieure à celle d une… …   Encyclopédie Universelle

• Astronomical spectroscopy — is the technique of spectroscopy used in astronomy. The object of study is the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other celestial objects. Spectroscopy can be used to derive many… …   Wikipedia