Solar flares on September 20, 2023
The most powerful solar flare in 24 hours
M8.2 (strong) flare - September 20 at 10:19 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-04 (Kingston) — 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 |
|---|---|---|---|---|
| C2.2 | 21:32 | 21:43 | 22:06 | 3442 |
| C2.3 | 19:17 | 19:21 | 19:25 | 3438 |
| C4.7 | 17:27 | 17:38 | 17:48 | 3442 |
| C1.3 | 16:29 | 16:38 | 16:44 | — |
| C5.5 | 14:36 | 14:40 | 14:44 | 3438 |
| C4.2 | 13:34 | 14:02 | 14:24 | 3442 |
| M8.2 | 10:11 | 10:19 | 10:25 | 3435 |
| C3.4 | 08:09 | 08:12 | 08:17 | 3438 |
| C3.1 | 05:03 | 05:10 | 05:15 | 3437 |
| C2.3 | 02:38 | 02:52 | 03:08 | 3429 |
| C3.0 | 00:27 | 00:37 | 00:46 | — |