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Epsilon Coronae Borealis, Latinized from ε Coronae Borealis, is a multiple star system in the constellation Corona Borealis located around 230 light-years from the Solar System. It shines with a combined apparent magnitude of 4.13, [9] meaning it is visible to the unaided eye in all night skies except those brightly lit in inner city locations ...
In astronomy and in astrophysics, for radiative losses of the solar corona, it is meant the energy flux radiated from the external atmosphere of the Sun (traditionally divided into chromosphere, transition region and corona), and, in particular, the processes of production of the radiation coming from the solar corona and transition region, where the plasma is optically-thin.
A corona discharge occurs at locations where the strength of the electric field (potential gradient) around a conductor exceeds the dielectric strength of the air. It is often seen as a bluish glow in the air adjacent to pointed metal conductors carrying high voltages, and emits light by the same mechanism as a gas discharge lamp ...
Coronagraph instruments are extreme examples of stray light rejection and precise photometry because the total brightness from the solar corona is less than one-millionth the brightness of the Sun. The apparent surface brightness is even fainter because, in addition to delivering less total light, the corona has a much greater apparent size ...
Lunar corona A solar corona up Beinn Mhòr (South Uist). In meteorology, a corona (plural coronae) is an optical phenomenon produced by the diffraction of sunlight or moonlight (or, occasionally, bright starlight or planetlight) [1] by individual small water droplets and sometimes tiny ice crystals of a cloud or on a foggy glass surface.
Light curve of R Coronae Borealis from 1990 to 2017, showing the unprecedented deep minimum The variability of R Coronae Borealis was discovered by English astronomer Edward Pigott in 1795. [ 13 ] In 1935 it was the first star shown to have a different chemical composition to the Sun via spectral analysis .
The recovery of the Discoverer 14 return capsule (typical for the CORONA series) A KH-4B CORONA satellite Discoverer 14 launch 1960, Thor Agena "A" launch vehicle. The CORONA [1] program was a series of American strategic reconnaissance satellites produced and operated by the Central Intelligence Agency (CIA) Directorate of Science & Technology with substantial assistance from the U.S. Air Force.
Chaos Corona is a computer-generated imagery 3D rendering software developed by Chaos Czech, a subsidiary of Chaos.It was created by Ondřej Karlík as a student project in 2009 and was developed by a Prague-based company Render Legion under the name Corona Renderer.