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Low Surface Brightness

См. также в других словарях:

  • Low surface brightness galaxy — A low surface brightness galaxy or LSB galaxy is a diffuse galaxy with a surface brightness that, when viewed from Earth, is at least one magnitude lower than the ambient night sky.Most LSBs are dwarf galaxies, in which most of their baryonic… …   Wikipedia

  • Surface brightness — is a concept used in astronomy when describing extended astronomical objects such as galaxies and nebulae.General descriptionThe apparent magnitude of an astronomical object is generally given as an integrated value mdash;if a galaxy is quoted as …   Wikipedia

  • Brightness temperature — is the temperature at which a blackbody in thermal equilibrium with its surroundings would have to be in order to duplicate the observed intensity of an object at a frequency u.This is a useful concept only for radiation that obeys the… …   Wikipedia

  • star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… …   Universalium

  • Light pollution — This article is about light pollution in the visible spectrum. For information on pollution in the radio spectrum, see radio spectrum pollution. This time exposure photo of New York City at night shows skyglow, one form of light pollution …   Wikipedia

  • Galaxy rotation curve — The rotation curve of a galaxy can be represented by a graph that plots the orbital velocity of the stars or gas in the galaxy on the y axis against the distance from the center of the galaxy on the x axis. Stars revolve around the center of… …   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

  • Dark matter — Not to be confused with antimatter, dark energy, dark fluid or dark flow. For other uses, see Dark Matter (disambiguation) …   Wikipedia

  • Galaxia de bajo brillo superficial — Las galaxias de bajo brillo superficial o galaxias LSB (de las siglas en inglés de Low Surface Brightness) son galaxias muy difusas que emiten mucha menos luz por unidad de área que las galaxias normales. Las galaxias de bajo brillo superficial… …   Wikipedia Español

  • X-shaped radio galaxy — X shaped (or winged ) radio galaxies are a class of extragalactic radio source that exhibit two, low surface brightness radio lobes (the wings ) oriented at an angle to the active, or high surface brightness, lobes. Both sets of lobes pass… …   Wikipedia

  • Galaxie à faible brillance superficielle — Une galaxie à faible brillance superficielle (en abréviation LSB de l anglais Low Surface Bbrightness galaxy ), est une galaxie diffuse avec une brillance superficielle qui, vue depuis la Terre, est inférieure d au moins d une magnitude à celle… …   Wikipédia en Français

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