emission nebulae

Mira otros diccionarios:

• Emission nebula — An emission nebula is a cloud of ionized gas ( i.e. a plasma) emitting light of various colors. The most common source for ionization are high energy photons emitted from a nearby hot star. Among the several different types of emission nebula are …   Wikipedia

• emission nebula — Astron. a bright diffuse nebula that emits light as a result of ionization of its gas atoms by ultraviolet radiation, as the Orion Nebula, planetary nebulae, and supernova remnants, as the Crab Nebula. * * * ▪ astronomy  in astronomy, a bright,… …   Universalium

• emission nebula — Astron. a bright diffuse nebula that emits light as a result of ionization of its gas atoms by ultraviolet radiation, as the Orion Nebula, planetary nebulae, and supernova remnants, as the Crab Nebula …   Useful english dictionary

• List of diffuse nebulae — Emission and reflection nebulae= * Barnard s Loop * Boomerang Nebula * Bubble Nebula * Bubble Nebula in Barnard s Galaxy * California Nebula * Cave Nebula * Corona Australis Nebula * Cone Nebula * Crescent Nebula * Double Helix Nebula * Eagle… …   Wikipedia

• A Catalogue of Nebulae and Clusters of Stars in the Southern Hemisphere observed in New South Wales — Ein astronomischer Katalog ist eine Liste von astronomischen Objekten, die aufgrund gemeinsamer Eigenschaften, wie Morphologie oder Entdeckungsmethode gruppiert werden. Astronomische Kataloge sind üblicherweise das Ergebnis einer astronomischen… …   Deutsch Wikipedia

• Fast Low-Ionization Emission Region — Fast Low Ionization Emission Regions (FLIERs) are volumes of gas with low ionization near the symmetry axis of many planetary nebulae. Their outflow speeds are significantly higher than the nebulae in which they are embedded, and their… …   Wikipedia

• Nebula — Nebulae redirects here. For the supercomputer in China, see Nebulae (computer). For other uses, see Nebula (disambiguation). The Pillars of Creation from the Eagle Nebula …   Wikipedia

• 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

• Milky Way Galaxy — Large spiral galaxy (roughly 150,000 light years in diameter) that contains Earth s solar system. It includes the multitude of stars whose light is seen as the Milky Way, the irregular luminous band that encircles the sky defining the plane of… …   Universalium

• Cosmic dust — Space dust redirects here. For other uses, see Space dust (disambiguation). Porous chondrite interplanetary dust particle. Cosmic dust is a type of dust composed of particles in space which are a few molecules to 0.1 µm in size. Cosmic dust… …   Wikipedia

• Reflection nebula — In Astronomy, reflection nebulae are clouds of dust which are simply reflecting the light of a nearby star or stars. The energy from the nearby star, or stars, is insufficient to ionize the gas of the nebula to create an emission nebula, but is… …   Wikipedia