Solar & space-weather phenomenon · Solar source

Coronal Holes

Regions of the Sun's corona where the magnetic field opens out into space rather than looping back, appearing dark in X-ray and ultraviolet images. They are the source of the fast solar wind, and the high-speed streams they send out drive recurring geomagnetic activity.

The Sun
Solar Wind
Parker Solar Probe

Knowledge connections

Associated withThe Sun
Associated withSolar Wind
Associated withParker Solar Probe
Associated withThe Solar Corona
Associated withPolar Coronal Plume
Associated withThe Fast Solar Wind

Sources

Facts on this topic will be cited from these primary and reference sources.

NOAA SWPCNOAA Space Weather Prediction Center
Space-weather forecasts and alerts: aurora (OVATION), the Kp index, and the G1–G5 geomagnetic storm scale.

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Coronal Holes

Drivers, environments & assets

Knowledge connections

Sources

Coronal Holes

Drivers, environments & assets

Knowledge connections

Sources