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structure of the Sun
structure of the Sun
From the center to the periphery are the core, the radiation and convection zones, the photosphere, the chromosphere and the corona.
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flare
Violent projection of extremely hot gas into space, provoking polar auroras on Earth a few days later.
faculae
Luminous region of the photosphere.
spicules
A narrow jet of gas in the form of a plume observed in the solar chromosphere.
photosphere
Visible surface of the Sun, with a temperature of 6,000°C.
corona
The outermost layer of the solar atmosphere, visible in the form of a halo during a total eclipse; corona temperatures can reach 1,000,000°C.
prominence
Gas that erupts from the chromosphere and solar corona, contrasting with the darkness of space.