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photometric filter

См. также в других словарях:

  • Photometric redshift — A photometric redshift is an estimate for the distance of an astronomical object, such as a galaxy or quasar. The technique uses photometry (that is, the brightness of the object viewed through various standard filters, each of which lets through …   Wikipedia

  • UBV photometric system — UBV photometric system, also called the Johnson system (or Johnson Morgan system), is a wide band photometric system for classifying stars according to their colors. It is first known standardized photoelectric photometric system. The letters U,… …   Wikipedia

  • Strömgren photometric system — (uvby) (sometimes also referred as Strömgren Crawford photometric system) is four colour medium band photometric system (plus H beta filter) for stellar classification. It was pioneered by the Danish astronomer Bengt Strömgren in 1956 and… …   Wikipedia

  • Vatican Advanced Technology Telescope — Infobox Settlement official name = VATT pushpin subdivision type = Country subdivision name = USA latd = 32 | latm = 42 | lats = 4.78 | latNS = N longd = 109 | longm = 53 | longs = 32.54 | longEW = W elevation m = 3178 website = The Vatican… …   Wikipedia

  • photometry — photometric /foh teuh me trik/, photometrical, adj. photometrist, photometrician /foh teuh me trish euhn/, n. /foh tom i tree/, n. 1. the measurement of the intensity of light or of relative illuminating power. 2. the science dealing with such… …   Universalium

  • Exposure (photography) — Underexposure redirects here. For the 2005 film by Oday Rasheed, see Underexposure (2005 film). A long exposure showing stars rotating around the southern and northern celestial poles. Credit: European Southern Observatory …   Wikipedia

  • The Dark Energy Survey — DES logo The Dark Energy Survey (DES) is a survey that aims to probe the dynamics of the expansion of the universe and the growth of large scale structure. The collaboration is composed of research institutes and universities from United… …   Wikipedia

  • Color index — For the colorant reference database, see Colour Index International. In astronomy, the color index is a simple numerical expression that determines the color of an object, which in the case of a star gives its temperature. To measure the index,… …   Wikipedia

  • Apache Point Observatory — Organization Astrophysical Research Consortium (ARC) Location Sunspot, New Mexico, USA …   Wikipedia

  • chromatography — chromatographer, n. chromatographic /kreuh mat euh graf ik, kroh meuh teuh /, adj. chromatographically, adv. /kroh meuh tog reuh fee/, n. Chem. the separation of mixtures into their constituents by preferential adsorption by a solid, as a column… …   Universalium

  • Redshift — This article is about the astronomical phenomenon. For other uses, see Redshift (disambiguation). Physical cosmology …   Wikipedia

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