- spiral galaxies
- • спирална галактика
English-Bulgarian polytechnical dictionary . 2013.
spiral galaxies
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List of spiral galaxies — A spiral galaxy is a type of galaxy characterized by a central bulge of old Population II stars surrounded by a rotating disc of younger Population I stars.piral galaxiesee also*Spiral galaxy *List of galaxies References … Wikipedia
Spiral galaxy — A spiral galaxy is a galaxy belonging to one of the three main classes of galaxy originally described by Edwin Hubble in his 1936 work “The Realm of the Nebulae” [cite book |last=Hubble |first=E. P. |authorlink=Edwin Hubble |title=The Realm of… … Wikipedia
spiral — 01. The birds were flying loops and [spirals] through the trees, and across the sky. 02. Most of the galaxies in the universe have a [spiral] shape. 03. We put a [spiral] binding on the book, so it could be opened and lain flat on a desk. 04.… … Grammatical examples in English
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
spiral — spiral, ale, aux [ spiral, o ] adj. • 1534; lat. scolast. spiralis, de spira → spire ♦ Rare (sauf avec quelques n.) Qui a la forme d une courbe tournant autour d un pôle dont elle s éloigne. Courbe, ligne spirale. Ressort spiral : ressort plat… … Encyclopédie Universelle
spiral — adjective winding in a continuous and gradually widening (or tightening) curve around a central point or axis. ↘winding in a continuous curve of constant diameter about a central axis, as though along a cylinder; helical. ↘Astronomy denoting… … English new terms dictionary
spiral nebula — Nebula Neb u*la (n[e^]b [ u]*l[.a]), n.; pl. {Nebul[ae]} (n[e^]b [ u]*l[=e]). [L., mist, cloud; akin to Gr. nefe lh, ne fos, cloud, mist, G. nebel mist, OHG. nebul, D. nevel, Skr. nabhas cloud, mist. Cf. {Nebule}.] 1. (Astron.) A faint, cloudlike … The Collaborative International Dictionary of English
Atlas of Peculiar Galaxies — The Atlas of Peculiar Galaxies is a catalog of peculiar galaxies produced by Halton Arp. A total of 338 galaxies are presented in the atlas, which was originally published in 1966 by the California Institute of Technology.The primary goal of the… … Wikipedia
Barred spiral galaxy — A barred spiral galaxy is a spiral galaxy with a central bar shaped structure composed of stars. Bars are found in approximately half of all spiral galaxiescite book author=J. Binney, S. Tremaine year=1987 title=Galactic Dynamics… … Wikipedia
Dwarf spiral galaxy — A dwarf spiral galaxy is the dwarf version of a spiral galaxy. Dwarf galaxies are characterized as having low luminosities, small diameters (less than 5 kpc), low surface brightnesses, and low hydrogen masses.[1] The galaxies may be considered a… … Wikipedia
Magellanic spiral — galaxies are galaxies which are classified as the type Sm (and SAm , SBm , SABm). They are galaxies with one spiral arm, and are named after their prototype, the Large Magellanic Cloud, an SBm galaxy. Contents 1 Magellanic spirals 2 Grades 3 List … Wikipedia
