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Solar flares — December 16, 2025

December 16, 2025

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Lethbridge
Home Solar flares December 16, 2025

Solar flares on December 16, 2025

The most powerful solar flare in 24 hours

C1.9 (normal) flare - December 16 at 6:51 AM

Solar activity index

Value as of the end of the day on December 16, 2025

Solar activity index

Solar X-ray emission over the past 2 days

Chart of solar X-ray emission (1-8 Å) from December 15, 2025 to December 16, 2025

Time zone — UTC-07 (Lethbridge)

Solar flares
PNG API: JSON | TXT

List of solar flares for December 16, 2025

The total number of solar flares of class C and higher — 3 flares

C class — 3 | M class — 0 | X class — 0

Class begin max end region
C1.1 10:46 10:59 11:06
C1.9 06:47 06:51 06:55
C1.5 06:36 06:43 06:47