Solar flares — Aug 17, 2025
The strongest solar flare in the day
Flare of C3.6 level (normal) — in 05:59
Solar activity index
Value for Aug 17, 2025 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Aug 16, 2025 to Aug 17, 2025
Time zone — UTC+01 (London) - summer time
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Aug 17, 2025
Total number of flares of class C and higher — 9 flares
C type — 9 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C3.3
|
20:48 | 20:58 | 21:02 | 4180 |
|
C1.0
|
09:01 | 09:06 | 09:09 | 4172 |
|
C1.4
|
08:36 | 08:41 | 08:44 | 4172 |
|
C1.7
|
07:49 | 08:05 | 08:16 | 4172 |
|
C1.0
|
06:55 | 07:05 | 07:11 | 4172 |
|
C3.6
|
05:51 | 05:59 | 06:05 | 4172 |
|
C1.8
|
05:01 | 05:11 | 05:16 | 4180 |
|
C2.0
|
04:10 | 04:15 | 04:20 | 4172 |
|
C1.6
|
02:11 | 02:26 | 02:44 | 4172 |