The Solar Corona Observed during Eclipse

• The corona can also be observed in white light from the ground during a solar eclipse, or using "coronagraphs" with occulting disks that artificially eclipse the bright solar disk.

• Such images show the closed loops are extended outward into radial coronal streamers by the wind outflow.

• Both X-ray and white-light observations show that closed-field loops tend to occur near the equator, while open-field coronal holes are usually near the solar poles.

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