irregular galaxy
11Galaxy — This article is about the astronomical structure. For other uses, see Galaxy (disambiguation). NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 55,000 light years in diameter and approximately 60 million light… …
12Galaxy morphological classification — Artist s concept illustrating bulge no bulge spiral galaxies. Galaxy morphological classification is a system used by astronomers to divide galaxies into groups based on their visual appearance. There are several schemes in use by which galaxies… …
13Irregular — Something that is irregular does not follow the expected pattern. The term is used in many different fields, with quite different meanings.* In astronomy, an astronomical object whose shape or behavior varies considerably from the archetype is… …
14Galaxy Science Fiction — was a digest size science fiction magazine, the creation of noted editor H. L. Gold, who found a responsive readership when he put the emphasis on imaginative sociological explorations of science fiction rather than hardware and pulp prose.… …
15galaxy — [gal′ək sē] n. pl. for 2 & 3 galaxies [ME galaxie < LL galaxias < Gr, Milky Way < gala, milk: see GALACTIC] 1. [usually G ] MILKY WAY the: often with the 2. a large, independent system of stars, typically containing millions to hundreds… …
16galaxy — /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… …
17galaxy — n. (pl. ies) 1 any of many independent systems of stars, gas, dust, etc., held together by gravitational attraction. 2 (the Galaxy) the galaxy of which the solar system is a part. 3 (the Galaxy) the irregular luminous band of stars… …
18Dwarf galaxy — UGC 9128 is a dwarf irregular galaxy, it probably contains only around one hundred million stars. A dwarf galaxy is a small galaxy composed of up to several billion stars, a small number compared to our own Milky Way s 200 400 billion stars. The… …
19Interacting galaxy — NGC 3169 (left) and NGC 3166 (right) display some curious features, demonstrating that each member of the duo is close enough to feel the distorting gravitational influence of the other. Iimage from the Wide Field Imager on the MPG/ESO 2.2 metre… …
20Dwarf spheroidal galaxy — NGC 147, a dwarf spheroidal galaxy of the Local Group Dwarf spheroidal galaxy (dSph) is a term in astronomy applied to low luminosity galaxies that are companions to the Milky Way and to the similar systems that are companions to the Andromeda… …
