PlzeÅ (Czech pronunciation: [ËplÌ©.zÉÉ²]), also called Pilsen in English and German, is a city in western Bohemia in the Czech Republic. About 90 kilometres (56 miles) west of Prague, it is the fourth most populous city in the Czech Republic.
The Chromosphere. Click on image for larger version. The chromosphere is an irregular layer above the photosphere where the temperature rises from 6000&degC to about 20,000&degC. At these higher temperatures hydrogen emits light that gives off a reddish color (H-alpha emission).
Auroras occur in the next layer, which is known as the ionosphere, or thermosphere, and finally the. exosphere gradually thins and merges with empty space. The troposphere is the layer of Earthâs atmosphere that meteorologists. watch most closely because itâs where weather happens. Of all the layers.