extragalactic universe

Mira otros diccionarios:

• Extragalactic cosmic ray — Extragalactic cosmic rays are very high energy particles that flow into our solar system from beyond our galaxy. The energies these particles possess are in excess of 1015 eV. Origin Unlike solar or galactic cosmic rays, little is known about the …   Wikipedia

• Extragalactic distance scale — The extragalactic distance scale is a series of techniques used today by astronomers to determine the distance of cosmological bodies (beyond our own galaxy) not easily obtained with traditional methods. Some procedures utilize properties of… …   Wikipedia

• Extragalactic background light — The Extragalactic Background Light (EBL) or simply the extragalactic background (EGB)is the faint diffuse light of the night sky, consisting of the combined flux of all extragalactic sources. Its main significance for astronomers is that it… …   Wikipedia

• extragalactic nebula — noun (astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust extragalactic nebula is a former name for galaxy • Syn: ↑galaxy • Derivationally related forms: ↑galactic (for: ↑gal …   Useful english dictionary

• Observable universe — For a general discussion of the universe, see Universe. Visualization of the 93 billion light year – or 28 billion parsec – three dimensional observable universe. The scale is such that the fine grains of light represent collections of large… …   Wikipedia

• expanding universe — Astron. a representation of the universe, based on the observed redshifts of distant galaxies, in which the galaxies are assumed to be receding from each other at a speed proportional to their separation as a result of the expansion of the… …   Universalium

• Future of an expanding universe — Big Freeze redirects here. For other uses, see Big Freeze (disambiguation). Physical cosmology Univ …   Wikipedia

• 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

• 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

• Fred Hoyle — Infobox Scientist box width = 300px name = Sir Fred Hoyle image size = 300px caption = Fred Hoyle (1915 2001) birth date = birth date|1915|6|24|df=y birth place = Gilstead, Bingley, West Yorkshire, England death date = death date and… …   Wikipedia

• Leo Triplet — Not to be confused with Leo Cluster or Leo I Group. Leo Triplet The Leo Triplet, with M65 (right top), M66 (right bottom) and NGC 3628 (left). North is to the left. Observation data (Epoch J2000) …   Wikipedia