Solar flares on September 18, 2023
The most powerful solar flare in 24 hours
C2.6 (normal) flare - September 18 at 5:41 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+07 (Barnaul)
List of solar flares for September 18, 2023
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.8 | 22:42 | 22:54 | 23:10 | 3436 |
| C2.3 | 21:44 | 21:52 | 22:01 | 3435 |
| C1.5 | 20:20 | 20:38 | 20:59 | — |
| C1.4 | 19:51 | 19:59 | 20:21 | 3429 |
| C2.6 | 17:31 | 17:41 | 17:49 | 3435 |
| C1.6 | 16:27 | 16:35 | 16:43 | 3425 |
| C1.5 | 07:56 | 08:04 | 08:09 | 3430 |