uv flare (ultraviolet flare)
1Extreme ultraviolet lithography — (also known as EUV or EUVL ) is a next generation lithography technology using the 13.5 nm EUV wavelength. EUVL opticsEUVL is a significant departure from the deep ultraviolet lithography used today. All matter absorbs EUV radiation. Hence, EUV… …
2solar flare — Astron. flare (def. 22). [1935 40] * * * Sudden intense brightening of a small part of the Sun s surface, often near a sunspot group. Flares develop in a few minutes and may last several hours, releasing intense X rays and streams of energetic… …
3sun — sunlike, adj. /sun/, n., v., sunned, sunning. n. 1. (often cap.) the star that is the central body of the solar system, around which the planets revolve and from which they receive light and heat: its mean distance from the earth is about 93… …
4star — 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,… …
5Corona — This article is about the astronomical term. For other uses, see Corona (disambiguation). During a total solar eclipse, the solar corona can be seen with the naked eye. A corona is a type of plasma atmosphere of the Sun or other celestial body,… …
6Sun — This article is about the star. For other uses, see Sun (disambiguation). The Sun …
7Photographic filter — Four photographic filters. Clockwise, from top left, an infrared hot mirror filter, a polarising filter, and a UV filter. The larger filter is a polariser for Cokin style filter mounts. In photography and videography, a filter is a camera… …
8X-ray astronomy — X rays start at 0.008 nm and extend across the electromagnetic spectrum to 8 nm, over which the Earth s atmosphere is opaque. X ray astronomy is an observational branch of astronomy which deals with the study of X ray observation and detection… …
9List of radio propagation topics — This is a list of radio propagation terms. NOTOC A a index A index aa index active prominence active prominence region (APR) active region active surge region (ASR) active dark filament (ADF) AE index Air Force Geophysics Laboratory (AFGL) arch… …
10AU Microscopii — Starbox begin name=AU Microscopii Starbox image caption=Microscopii s debris disk. Starbox observe epoch=J2000 ra=RA|20|45|09.5318 dec=DEC| 31|20|27.238 appmag v=8.61 constell=Microscopium Starbox character class=M1 Ve b v=1.45 u b=1.01… …
