Solar flares on September 30, 2023
The most powerful solar flare in 24 hours
M2.5 (strong) flare - September 30 at 5:32 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-08 (Anchorage) — summer time
List of solar flares for September 30, 2023
The total number of solar flares of class C and higher — 17 flares
C class — 15 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.6 | 21:10 | 21:15 | 21:21 | 3450 |
| C9.3 | 19:21 | 19:24 | 19:30 | 3445 |
| M2.5 | 17:10 | 17:32 | 17:43 | 3452 |
| C3.0 | 17:02 | 17:06 | 17:10 | 3450 |
| C3.1 | 16:40 | 16:45 | 16:51 | 3452 |
| C2.8 | 15:41 | 15:55 | 16:12 | — |
| C6.6 | 13:39 | 13:45 | 13:52 | 3450 |
| C6.2 | 13:18 | 13:38 | 13:39 | 3452 |
| C2.7 | 12:26 | 12:37 | 12:56 | 3451 |
| C4.7 | 10:15 | 10:25 | 10:34 | 3451 |
| M1.2 | 08:16 | 08:35 | 08:49 | 3451 |
| C6.3 | 07:57 | 08:07 | 08:14 | 3451 |
| C5.1 | 06:35 | 06:44 | 06:57 | 3450 |
| C3.9 | 06:05 | 06:18 | 06:32 | 3447 |
| C4.9 | 04:23 | 04:29 | 04:36 | 3451 |
| C9.6 | 03:51 | 03:57 | 04:06 | 3445 |
| C2.6 | 02:40 | 02:46 | 02:56 | 3451 |