Solar flares on September 18, 2023
The most powerful solar flare in 24 hours
C3.5 (normal) flare - September 18 at 1:34 AM
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+09:30 (Adelaide)
List of solar flares for September 18, 2023
The total number of solar flares of class C and higher — 6 flares
C class — 6 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 22:50 | 23:08 | 23:29 | — |
| C1.4 | 22:21 | 22:29 | 22:51 | 3429 |
| C2.6 | 20:01 | 20:11 | 20:19 | 3435 |
| C1.6 | 18:57 | 19:05 | 19:13 | 3425 |
| C1.5 | 10:26 | 10:34 | 10:39 | 3430 |
| C3.5 | 01:25 | 01:34 | 01:40 | 3435 |