Contains:  Noctilucent clouds
Noctilucent clouds and fireworks, JY

Noctilucent clouds and fireworks

Noctilucent clouds and fireworks, JY

Noctilucent clouds and fireworks

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noctilucent clouds above the iron lady on fire!(paris 14/07/2009)

description:

Noctilucent clouds are the highest clouds in the Earth's atmosphere, located in the mesosphere at an altitude of about 75 ~ 85 km above the level of the sea. From the earth's surface, the noctilucent clouds are visible only when illuminated from below, that is to say when the sunlight no longer shines on the floor and the lower layers of the atmosphere that are already in the shadow of Terre.ussi known as name of polar mesospheric clouds, are air training at high altitude. To an observer on Earth, they appear as bright clouds in the form of filaments or sheets, visible during the deep twilight that is to say, astronomical twilight. The term "noctulescent" means roughly "night shining" in Latin roots. Most of the time these clouds are observed during the summer months between latitudes 50 ° and 70 ° north and south of the equator, that is to say the poles

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Noctilucent clouds and fireworks, JY