Solar flares on September 27, 2023
The most powerful solar flare in 24 hours
C5.3 (normal) flare - September 27 at 8:19 PM
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-04 (Concord) — summer time
List of solar flares for September 27, 2023
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 23:48 | 23:53 | 23:58 | 3450 |
| C5.3 | 20:10 | 20:19 | 20:23 | 3450 |
| C1.4 | 19:02 | 19:10 | 19:14 | — |
| C3.5 | 14:29 | 14:32 | 14:38 | 3449 |
| C2.0 | 11:13 | 11:22 | 11:34 | 3450 |
| C2.1 | 06:04 | 06:12 | 06:21 | — |
| C2.6 | 05:41 | 05:47 | 05:52 | 3449 |
| C4.6 | 01:32 | 01:46 | 02:12 | — |
| C2.0 | 00:49 | 00:55 | 01:00 | — |