Solar flares on September 18, 2023
The most powerful solar flare in 24 hours
C3.8 (normal) flare - September 18 at 11:35 PM
Solar activity index
Value as of the end of the day on September 18, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 17, 2023 to September 18, 2023
Time zone — UTC+03 (Makhachkala)
List of solar flares for September 18, 2023
The total number of solar flares of class C and higher — 12 flares
C class — 12 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.8 | 23:22 | 23:35 | 23:50 | 3436 |
| C2.4 | 22:35 | 22:46 | 22:54 | 3436 |
| C1.9 | 21:27 | 21:32 | 21:36 | 3436 |
| C1.8 | 21:10 | 21:20 | 21:27 | 3436 |
| C2.0 | 20:35 | 20:43 | 20:53 | 3436 |
| C1.8 | 18:42 | 18:54 | 19:10 | 3436 |
| C2.3 | 17:44 | 17:52 | 18:01 | 3435 |
| C1.5 | 16:20 | 16:38 | 16:59 | — |
| C1.4 | 15:51 | 15:59 | 16:21 | 3429 |
| C2.6 | 13:31 | 13:41 | 13:49 | 3435 |
| C1.6 | 12:27 | 12:35 | 12:43 | 3425 |
| C1.5 | 03:56 | 04:04 | 04:09 | 3430 |