Solar flares on August 21, 2023
The most powerful solar flare in 24 hours
C4.7 (normal) flare - August 21 at 7:43 PM
Solar activity index
Value as of the end of the day on August 21, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 20, 2023 to August 21, 2023
Time zone — UTC-04 (Quebec) — summer time
List of solar flares for August 21, 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 |
|---|---|---|---|---|
| C4.7 | 19:23 | 19:43 | 19:47 | 3413 |
| C1.3 | 15:00 | 15:09 | 15:18 | — |
| C3.1 | 08:18 | 08:38 | 08:53 | 3403 |
| C4.3 | 03:35 | 03:53 | 04:11 | — |
| C2.0 | 01:33 | 01:45 | 02:02 | — |
| C1.5 | 01:18 | 01:28 | 01:33 | — |