Supergranules, while driven vertically, can be seen primarily as large horizontal motions. Earths 52 Earths 109 Earths 243 Earths Outer Layers of the Sun. The photosphere, shown as an orange vertical line, is the region where sunspots are formed. The less dense and turbulent chromosphere is a rapidly-changing filamentary structure that is seen during eclipses as a bright red ring around the Sun. The intensely active transition region , illustrated by the vertical yellow line, was first observed in detail by Skylab in the late 1970s.
Spicules extend the chromosphere into the corona as pointed waves.
Prominences and the corona reach far into interplanetary space, and are much too large for the scale of this picture. Let us start with the photosphere. The orange vertical line marked by the two arrows is a to-scale drawing of the solar photosphere. The State of California The City of Munich The Country of Austrailia Let us continue on to the outer layers of the Sun. Plus a little bit of the interior Sun and a little bit of the Corona.