X1.9-Class Flare Magnified by Duration

SPACEWEATHER.COM NEWS: 01/19/2026

SIGNIFICANT X-CLASS SOLAR FLARE: Sunspot 4341 erupted today (Jan. 18 @ 1809 UTC), producing an X1.9-class solar flare. The explosion lasted for hours, which makes this flare even more powerful than than its “X1.9” rating would suggest. This video from NASA’s Solar Dynamics Observatory says it all:

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