Solar flares on August 21, 2023
The most powerful solar flare in 24 hours
C4.3 (normal) flare - August 21 at 12:53 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+05 (Ufa)
List of solar flares for August 21, 2023
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.1 | 17:18 | 17:38 | 17:53 | 3403 |
| C4.3 | 12:35 | 12:53 | 13:11 | — |
| C2.0 | 10:33 | 10:45 | 11:02 | — |
| C1.5 | 10:18 | 10:28 | 10:33 | — |
| C3.0 | 00:22 | 00:46 | 01:07 | — |
Diary
- 17.08.2026 Space weather on August 17, 2026
- 12.08.2026 VIDEO: Solar eclipse of August 12, 2026, in real time
- 10.08.2026 Space weather on August 10, 2026