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Gathering storms

Mark Johnston from Scottsdale, Arizona

The fireworks of solar cycle 25 continue, as seen in this Hα shot from July 2 featuring a filament at lower left and prominences leaping off the limb of the active Sun. The shot was taken with a 6-inch refractor fitted with an energy rejection filter and a Lunt etalon stacked with a Daystar Hα “eyepiece.”