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Layers of the Sun (With Labels)

Target Name:  Sun
Produced by:  NASA
Copyright: NASA Copyright Free Policy
Date Released: 21 March 2007

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The sun and its atmosphere consist of several zones or layers. From the inside out, the solar interior consists of the core, the radiative zone, and the convection zone. The solar atmosphere is made up of the photosphere, the chromosphere, a transition region, and the corona. Beyond the corona is the solar wind, which is actually an outward flow of coronal gas. Because astronomers cannot see inside the sun, they have learned about the solar interior indirectly. Part of their knowledge is based on the observed properties of the sun as a whole. Some of it is based on calculations that produce phenomena in the observable zones.

Copyright © 1995-2013 by Calvin J. Hamilton. All rights reserved.