coronal ray
1Coronal loop — Typical coronal loops observed by TRACE Coronal loops form the basic structure of the lower corona and transition region of the Sun. These highly structured and elegant loops are a direct consequence of the twisted solar magnetic flux within the… …
2Coronal radiative losses — In astronomy and in astrophysics, for radiative losses of the solar corona, it is meant the energy flux irradiated from the external atmosphere of the Sun (traditionally divided into chromosphere, transition region and corona), and, in particular …
3Coronal mass ejection — A coronal mass ejection in time lapse imagery obtained with the LASCO instrument. The Sun (center) is obscured by the coronagraph s mask. (September 30 – October 1, 2001) A coronal mass ejection (CME) is a massive burst of solar wind, other light …
4Coronal hole — Coronal holes are areas where the Sun s corona is darker, colder, and has lower density plasma than average. These were found when X ray telescopes in the Skylab mission were flown above the Earth s atmosphere to reveal the structure of the… …
5coronal hole — Astron. a part of the solar corona that appears dark on optical and x ray images and is characterized by low temperature and low density. [1970 75] * * * …
6coronal hole — Astron. a part of the solar corona that appears dark on optical and x ray images and is characterized by low temperature and low density. [1970 75] …
7X-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… …
8X-ray computed tomography — For non medical computed tomography, see Industrial CT Scanning. catSCAN redirects here. For the Transformers character, see Transformers: Universe. X ray computed tomography Intervention A patient is receiving a CT scan for cancer. Outsid …
9X-ray source — ▪ astronomy in astronomy, any of a class of cosmic objects that emit radiation at X ray wavelength. Because the Earth s atmosphere absorbs X rays (X ray) very efficiently, X ray telescopes and detectors must be carried high above it by… …
10Corona — 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,… …
