Solar flares on June 11, 2025
The most powerful solar flare in 24 hours
C8.5 (normal) flare - June 11 at 3:11 PM
Solar activity index
Value as of the end of the day on June 11, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 10, 2025 to June 11, 2025
Time zone — UTC-04 (Quebec) — summer time
List of solar flares for June 11, 2025
The total number of solar flares of class C and higher — 11 flares
C class — 11 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.9 | 21:41 | 22:01 | 22:18 | 4105 |
| C3.2 | 19:38 | 19:46 | 19:48 | 4107 |
| C3.2 | 18:43 | 18:51 | 18:57 | — |
| C3.4 | 16:33 | 16:41 | 16:48 | 4107 |
| C8.5 | 15:07 | 15:11 | 15:13 | 4115 |
| C6.3 | 11:44 | 11:52 | 11:56 | 4105 |
| C2.5 | 08:23 | 08:32 | 08:44 | 4105 |
| C1.6 | 07:25 | 07:34 | 07:36 | 4107 |
| C1.6 | 07:06 | 07:18 | 07:25 | 4107 |
| C1.5 | 04:57 | 05:05 | 05:11 | 4107 |
| C2.1 | 04:38 | 04:44 | 04:48 | 4107 |