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Solar flares — Sep 25, 2021

The strongest solar flare in the day

Flare of C1.7 level (normal) — in 20:17

Solar activity index

Value for Sep 25, 2021 24:00 (end on the day). The maximum value is 10.0

Solar activity index

Solar flares in 2 days

Chart of solar activity from Sep 24, 2021 to Sep 25, 2021

Time zone — UTC+01 (London) - summer time

Solar flares in 2 days
This chart in PNG format — high resolution API data: JSON or TXT

List of solar flares for Sep 25, 2021

Total number of flares of class C and higher3 flares

C type — 3 | M type — 0 | X type — 0

  start maximum end region
C1.7
20:11 20:17 20:21 2871
C1.0
12:10 12:30 12:37 2871
C1.4
04:27 04:54 05:04 2871