- mean brightness
- средняя яркость
The New English-Russian Dictionary of Radio-electronics. F.V Lisovsky . 2005.
mean brightness
Смотреть что такое "mean brightness" в других словарях:
Brightness — is an attribute of visual perception in which a source appears to emit or reflect a given amount of light. In other words, brightness is the perception elicited by the luminance of a visual target. This is a subjective attribute/property of an… … Wikipedia
cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… … Universalium
RV Tauri variable — RV Tauri variables are supergiant variable stars. They exhibit changes in luminosity which are tied to radial pulsations of their surfaces. Their changes in brightness are also correlated with changes in their spectral type. While at their… … Wikipedia
Hertzsprung , Ejnar — (1873–1967) Danish astronomer Hertzsprung was born in Frederiksberg, Denmark, the son of a senior civil servant who had a deep interest in mathematics and astronomy but who was anxious to see that his son received a more practical education.… … Scientists
6 Hebe — Infobox Planet | discovery=yes | physical characteristics = yes | bgcolour=#FFFFC0 name=6 Hebe symbol= discoverer=Karl Ludwig Hencke discovered=July 1, 1847 alt names=1947 JB mp category=Main belt adjectives=Hebean epoch=November 26, 2005 (JD… … Wikipedia
Nu¹ Arae — For other star systems with this Bayer designation, see Nu Arae. ν1 Arae Observation data Epoch J2000 Equinox J2000 Constellation Ara Right ascension 17h 50m 28.3927s … Wikipedia
15 Eunomia — Infobox Planet | discovery=yes | physical characteristics = yes | bgcolour=#FFFFC0 name=15 Eunomia symbol= discoverer=Annibale de Gasparis discovered=July 29, 1851 alt names= none mp category=Main belt, (Eunomia family) epoch=June 14, 2006 (JD… … 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
asteroid — asteroidal, adj. /as teuh royd /, n. 1. Also called minor planet. Astron. any of the thousands of small bodies of from 480 miles (775 km) to less than one mile (1.6 km) in diameter that revolve about the sun in orbits lying mostly between those… … Universalium
Pluto — This article is about the dwarf planet. For other uses, see Pluto (disambiguation). Pluto … Wikipedia
Malmquist bias — For other uses of Malmquist, see Malmquist (disambiguation). The Malmquist bias refers to an effect in observational astronomy which leads to the preferential detection of intrinsically bright objects. It was first popularized in 1922 by Swedish… … Wikipedia
