Astronomy
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Mesosphere
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Mesosphere
According to some authors there would be no distinction between stratopause and mesosphere. In this region, which extends to about 80 km, the temperature, at first slightly increasing due to the presence of ozone, then decreases rapidly to a minimum of -70 ºC. The mesosphere is the site of light emission from the air, of the formation of most of the atmospheric ozone and of the transformation of primary cosmic radiation into secondary radiation, to which we owe the presence of the lowest ionized layer (layer D). There are also observed light trails caused by the burning of meteorites and the lowest polar auroras.
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