(--- Astronomy) A band of the celestial sphere extending about 8° to either side of the ecliptic that represents the path of the principal planets, the moon, and the sun.
The sum of everything that exists in the cosmos, including time and space itself; same as the Universe.
A gathering or assemblage, especially of prominent persons or things:
the galaxy containing the solar system; consists of millions of stars that can be seen as a diffuse band of light stretching across the night sky
A galaxy consisting of a rotating flattened disk with an ellipsoidal central bulge from which extend a pattern of two or more luminous spiral arms. Spiral galaxies range from large bulges with tightly wound arms (classified as Sa) to small bulges with loosely wound arms (classified as Sc and in some cases Sd). The majority of the mass of a spiral galaxy is contained in its bulge, made up mostly of old stars, while the arms are composed mostly of younger stars and large amounts of interstellar gas and dust. A spherical, relatively dust-free region known as a galactic halo surrounding a spiral galaxy may contain large amounts of dark matter. The Milky Way is a spiral galaxy. &diamf3; A spiral galaxy whose central bulge has the shape of a bar from whose ends the spiral arms emanate is called a barred spiral galaxy . About a third of spiral galaxies have this straight or lozenge-shaped bar of stars, gas, and dust extending out from the nucleus. Barred spiral galaxies are classified similarly to regular spirals, from SBa (large bulge, tightly wound arms) to SBc (smaller bulge, looser arms). Astronomers believe that some elliptical galaxies containing hints of a bar and spiral might once have been barred spiral galaxies.
Find another word for milky-way. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for milky-way, like: galactic circle, Via Lactea (Latin), galaxy, zodiac, universe, constellation, milky-way-galaxy, Milky Way System and spiral-galaxy.