There were some large prominences on the sun yesterday. The largest extended outward nearly one-fifth of the sun's diameter, or 173,000 mi (278,000 km).
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| False-color image of the sun in hydrogen-alpha light. 29 July 10:30 am MDT. |
Equipment: Lunt LS50THa double-stacked solar telescope and ASI178mm camera. The full-disk image is blacked out to emphasize the prominences.
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