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单词 Coronal cloud
释义

Coronal cloud

英语百科

Coronal cloud

An example of a coronal cloud at half expansion. The inner portion is still plasma with the magnetic rope visible, but the outer area is gaseous and already expanded quite far into space.
A diagram of the November 17, 1882,
An image of the March 13, 1989, solar flare, which created a coronal cloud that took out power for 6 million people in Quebec and Ontario. Taken by the SOHO Space Telescope.

A coronal cloud is the cloud of hot plasma gas surrounding a coronal mass ejection. It is usually made up of protons, radioactive material, and intensely fast winds. When a coronal mass ejection occurs, it is the coronal cloud that usually reaches Earth and causes damage to electrical equipment and space satellites, not the ejection or flare itself. The damage is mostly the result of the high amount of electricity moving through the atmosphere.

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