Concept information
Terme préférentiel
solar spicule
Définition(s)
- In solar physics, a spicule, also known as a fibril or mottle, is a dynamic jet of plasma in the Sun's chromosphere about 300 km in diameter. They move upwards with speeds between 15 and 110 km/s from the photosphere and last a few minutes each. They were discovered in 1877 by Angelo Secchi, but the physical mechanism that generates them is still hotly debated. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Solar_spicule)
Concept(s) générique(s)
Synonyme(s)
- Sun spicule
Traductions
-
français
URI
http://data.loterre.fr/ark:/67375/MDL-V6J5T9MQ-S
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