A CME from the sun will reach Earth on July 31, causing a minor aurora display.
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The display coincides with a bright full moon, potentially making the aurora harder to notice.
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Cameras can still capture auroras during a full moon by looking for green light in the north.
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Moon's bright phase may create a "low glow," sometimes mistaken for aurora on full-moon nights.
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The Full Sturgeon Moon occurs on Aug. 1 at 1:31 p.m. CDT, providing a dramatic sight during moonrise.
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The moon's rise after sunset will enhance its presence at the horizon for observers.
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The aurora may be visible across the Upper Midwest, southern Canada, and northern Europe, depending on intensity.
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