Solar flares on September 30, 2023
The most powerful solar flare in 24 hours
M2.5 (strong) flare - September 30 at 8:32 PM
Solar activity index
Value as of the end of the day on September 30, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 29, 2023 to September 30, 2023
Time zone — UTC-05 (Topeka) — summer time
List of solar flares for September 30, 2023
The total number of solar flares of class C and higher — 18 flares
C class — 16 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C9.3 | 22:21 | 22:24 | 22:30 | 3445 |
| M2.5 | 20:10 | 20:32 | 20:43 | 3452 |
| C3.0 | 20:02 | 20:06 | 20:10 | 3450 |
| C3.1 | 19:40 | 19:45 | 19:51 | 3452 |
| C2.8 | 18:41 | 18:55 | 19:12 | — |
| C6.6 | 16:39 | 16:45 | 16:52 | 3450 |
| C6.2 | 16:18 | 16:38 | 16:39 | 3452 |
| C2.7 | 15:26 | 15:37 | 15:56 | 3451 |
| C4.7 | 13:15 | 13:25 | 13:34 | 3451 |
| M1.2 | 11:16 | 11:35 | 11:49 | 3451 |
| C6.3 | 10:57 | 11:07 | 11:14 | 3451 |
| C5.1 | 09:35 | 09:44 | 09:57 | 3450 |
| C3.9 | 09:05 | 09:18 | 09:32 | 3447 |
| C4.9 | 07:23 | 07:29 | 07:36 | 3451 |
| C9.6 | 06:51 | 06:57 | 07:06 | 3445 |
| C2.6 | 05:40 | 05:46 | 05:56 | 3451 |
| C2.4 | 01:51 | 01:56 | 02:02 | 3451 |
| C8.0 | 00:56 | 01:00 | 01:06 | 3445 |