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structure of the Sun click to hear : 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 faculae spicules photosphere corona convection zone radiation zone core prominence granulation sunspot chromosphere

flare click to hear : flare

Violent projection of extremely hot gas into space, provoking polar auroras on Earth a few days later.

faculae click to hear : faculae

Luminous region of the photosphere.

spicules click to hear : spicules

A narrow jet of gas in the form of a plume observed in the solar chromosphere.

photosphere click to hear : photosphere

Visible surface of the Sun, with a temperature of 6,000°C.

corona click to hear : 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.

convection zone click to hear : convection zone

Region where hot gas currents circulate between the hot regions of the core and the cool surface.

radiation zone click to hear : radiation zone

Region where energy produced in the core cools before migrating in the form of light and heat.

core click to hear : core

The innermost part of the Sun where hydrogen is converted into helium by nuclear fusion; core temperatures reach 15,000,000°C.

prominence click to hear : prominence

Gas that erupts from the chromosphere and solar corona, contrasting with the darkness of space.

granulation click to hear : granulation

Network of cells on the photosphere brought about by the convective movement of hot gas from the Sun’s interior.

sunspot click to hear : sunspot

A dark, slightly cooler zone of the photosphere where the magnetic field is more intense.

chromosphere click to hear : chromosphere

The lowest level of the solar atmosphere, with a temperature of 10,000°C.