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Rita Eberle-Wessner / 2,206 items
Noctilucent clouds - Nachtleuchtende Wolken

Noctilucent Clouds , Germany, Mörlenbach 21.06.2019. Noctilucent Clouds clouds are accumulations of ice crystals over the mesopause. There, the absolute temperature minimum of the earth's atmosphere is reached. They appear at a height of 81 to 85 km. Noctilucent clouds can be seen on clear nights around the summer solstice, especially in a northerly direction. The crystallization nuclei for the ice crystals may be particles that form when burning meteors.
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Dates
  • Taken: Jun 21, 2019
  • Uploaded: Jul 2, 2024
  • Updated: Aug 22, 2024