Concept information
Preferred term
stellar corona
Definition(s)
- A corona (pl. coronas or coronae) is the outermost layer of a star's atmosphere. It consists of plasma. The Sun's corona lies above the chromosphere and extends millions of kilometres into outer space. It is most easily seen during a total solar eclipse, but it is also observable with a coronagraph. Spectroscopic measurements indicate strong ionization in the corona and a plasma temperature in excess of 1000000 kelvins, much hotter than the surface of the Sun, known as the photosphere. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Stellar_corona)
Broader concept(s)
Synonym(s)
- star corona
- star coronae
- stellar coronae
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/MDL-LGK60364-3
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