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Solar flares — Sep 19, 2025

The strongest solar flare in the day

Flare of M1.5 level (strong) — in 22:41

Solar activity index

Value for Sep 19, 2025 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 18, 2025 to Sep 19, 2025

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 19, 2025

Total number of flares of class C and higher5 flares

C type — 4 | M type — 1 | X type — 0

  start maximum end region
M1.5
22:22 22:41 22:56 4216
C5.8
21:49 22:12 22:20 4216
C1.9
17:37 17:44 17:52 4223
C1.9
13:49 13:58 14:06 4219
C2.9
07:49 08:05 08:25 4217