Solar flares on September 27, 2023
The most powerful solar flare in 24 hours
C4.6 (normal) flare - September 27 at 5:46 AM
Solar activity index
Value as of the end of the day on September 27, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 26, 2023 to September 27, 2023
Time zone — UTC+00
List of solar flares for September 27, 2023
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 23:02 | 23:10 | 23:14 | — |
| C3.5 | 18:29 | 18:32 | 18:38 | 3449 |
| C2.0 | 15:13 | 15:22 | 15:34 | 3450 |
| C2.1 | 10:04 | 10:12 | 10:21 | — |
| C2.6 | 09:41 | 09:47 | 09:52 | 3449 |
| C4.6 | 05:32 | 05:46 | 06:12 | — |
| C2.0 | 04:49 | 04:55 | 05:00 | — |
| C1.6 | 00:35 | 00:41 | 00:45 | — |