coronal streamer

A wisp-like stream of particles traveling through the Sun's corona, visible in images taken with a coronagraph or during a total solar eclipse. Coronal streamers are thought to be associated with active regions and/or prominences and are most impressive near the maximum of the solar cycle. Although they can be longer than the diameter of the Sun, they are very tenuous; the material in them gradually moves away from the Sun and becomes part of the solar wind.

Related category

• SOLAR TOPICS

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