Solar flares on September 20, 2023
The most powerful solar flare in 24 hours
M8.2 (strong) flare - September 20 at 11:49 PM
Solar activity index
Value as of the end of the day on September 20, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 19, 2023 to September 20, 2023
Time zone — UTC+09:30 (Adelaide)
List of solar flares for September 20, 2023
The total number of solar flares of class C and higher — 11 flares
C class — 9 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M8.2 | 23:41 | 23:49 | 23:55 | 3435 |
| C3.4 | 21:39 | 21:42 | 21:47 | 3438 |
| C3.1 | 18:33 | 18:40 | 18:45 | 3437 |
| C2.3 | 16:08 | 16:22 | 16:38 | 3429 |
| C3.0 | 13:57 | 14:07 | 14:16 | — |
| C9.7 | 07:51 | 08:07 | 08:17 | 3435 |
| C2.0 | 07:12 | 07:17 | 07:21 | 3436 |
| C2.7 | 06:29 | 06:39 | 06:45 | 3436 |
| M4.0 | 05:31 | 05:44 | 05:51 | 3435 |
| C2.7 | 02:46 | 02:55 | 03:12 | 3438 |
| C4.2 | 01:09 | 01:22 | 01:38 | 3436 |