- photometric brightness difference
- абсолютное яркостное различие
English-Russian electronics dictionary .
photometric brightness difference
Смотреть что такое "photometric brightness difference" в других словарях:
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
Vega — Starbox begin name=Vega Starbox image caption = Location of Vega in the constellation Lyra. Starbox observe epoch=J2000.0 constell=Lyra ra=RA|18|36|56.3364cite web author=Staff date=October 30, 2007 url=http://simbad.u strasbg.fr/simbad/sim… … Wikipedia
Color–color diagram — In astronomy, color–color diagrams are a means of comparing the apparent magnitudes of stars at different wavelengths. Astronomers typically observe at narrow bands around certain wavelengths, and objects observed will have different brightnesses … Wikipedia
Main sequence — A Hertzsprung Russell diagram plots the actual brightness (or absolute magnitude) of a star against its color index (represented as B V). The main sequence is visible as a prominent diagonal band that runs from the upper left to the lower right.… … Wikipedia
Gamma correction — Gamma correction, gamma nonlinearity, gamma encoding, or often simply gamma, is the name of a nonlinear operation used to code and decode luminance or tristimulus values in video or still image systems. [cite book | title = Digital Video and HDTV … Wikipedia
luminescence — luminescent, adj. /looh meuh nes euhns/, n. 1. the emission of light not caused by incandescence and occurring at a temperature below that of incandescent bodies. 2. the light produced by such an emission. [1885 90; < L lumin (see LUMEN) +… … Universalium
Dark slope streak — Slope Streaks in Acheron Fossae in 2010 … Wikipedia
Nix (moon) — Nix Discovery images of Nix (and Hydra) Discovery Discovered by Hubble Space Telescope Pluto Compan … Wikipedia
HSL and HSV — Fig. 1. HSL (a–d) and HSV (e–h). Above (a, e): cut away 3D models of each. Below: two dimensional plots showing two of a model’s three parameters at once, holding the other constant: cylindrical shells (b, f) of constant saturation, in this case… … 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
Apparent magnitude — Asteroid 65 Cybele and 2 stars with their magnitudes labeled The apparent magnitude (m) of a celestial body is a measure of its brightness as seen by an observer on Earth, normalized to the value it would have in the absence of the atmosphere.… … Wikipedia
