Solar flares on September 12, 2023
The most powerful solar flare in 24 hours
M2.5 (strong) flare - September 12 at 8:07 AM
Solar activity index
Value as of the end of the day on September 12, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 11, 2023 to September 12, 2023
Time zone — UTC+01 (London) — summer time
List of solar flares for September 12, 2023
The total number of solar flares of class C and higher — 14 flares
C class — 11 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.6 | 22:50 | 23:00 | 23:07 | 3423 |
| C4.6 | 20:45 | 21:09 | 21:17 | 3429 |
| C1.6 | 20:31 | 20:38 | 20:44 | — |
| C2.9 | 16:58 | 17:11 | 17:26 | — |
| C4.7 | 16:07 | 16:24 | 16:35 | 3425 |
| C3.1 | 12:32 | 12:37 | 12:42 | 3423 |
| C3.6 | 12:06 | 12:12 | 12:17 | 3425 |
| C7.3 | 08:58 | 09:06 | 09:20 | — |
| M2.5 | 07:47 | 08:07 | 08:19 | 3423 |
| C4.5 | 06:36 | 06:43 | 06:50 | 3431 |
| M1.8 | 05:31 | 05:42 | 05:47 | — |
| M1.9 | 05:18 | 05:26 | 05:31 | 3425 |
| C3.8 | 03:08 | 03:15 | 03:23 | — |
| C3.7 | 02:21 | 02:28 | 02:38 | — |