Solar flares on September 20, 2023
The most powerful solar flare in 24 hours
M8.2 (strong) flare - September 20 at 8:19 AM
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-06 (Dawson) — summer time
List of solar flares for September 20, 2023
The total number of solar flares of class C and higher — 11 flares
C class — 10 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 23:51 | 23:57 | 00:05 | 3438 |
| C2.2 | 19:32 | 19:43 | 20:06 | 3442 |
| C2.3 | 17:17 | 17:21 | 17:25 | 3438 |
| C4.7 | 15:27 | 15:38 | 15:48 | 3442 |
| C1.3 | 14:29 | 14:38 | 14:44 | — |
| C5.5 | 12:36 | 12:40 | 12:44 | 3438 |
| C4.2 | 11:34 | 12:02 | 12:24 | 3442 |
| M8.2 | 08:11 | 08:19 | 08:25 | 3435 |
| C3.4 | 06:09 | 06:12 | 06:17 | 3438 |
| C3.1 | 03:03 | 03:10 | 03:15 | 3437 |
| C2.3 | 00:38 | 00:52 | 01:08 | 3429 |