Solar flares on September 15, 2023
The most powerful solar flare in 24 hours
M3.3 (strong) flare - September 15 at 9:38 PM
Solar activity index
Value as of the end of the day on September 15, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 14, 2023 to September 15, 2023
Time zone — UTC-08 (Dillingham) — summer time
List of solar flares for September 15, 2023
The total number of solar flares of class C and higher — 11 flares
C class — 8 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.6 | 23:36 | 23:40 | 23:44 | 3429 |
| C2.1 | 23:06 | 23:11 | 23:16 | 3429 |
| M3.3 | 21:30 | 21:38 | 21:51 | 3429 |
| C5.0 | 21:09 | 21:24 | 21:30 | — |
| C1.4 | 19:23 | 19:31 | 19:37 | 3429 |
| M2.9 | 16:38 | 16:50 | 16:57 | 3429 |
| C2.0 | 15:35 | 15:42 | 15:47 | 3429 |
| M1.7 | 14:19 | 14:29 | 14:34 | 3429 |
| C2.1 | 05:09 | 05:17 | 05:22 | 3429 |
| C2.2 | 02:09 | 02:17 | 02:25 | 3429 |
| C1.9 | 00:52 | 00:59 | 01:05 | 3429 |