Solar flares on November 21, 2025
The most powerful solar flare in 24 hours
C3.8 (normal) flare - November 21 at 10:30 PM
Solar activity index
Value as of the end of the day on November 21, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from November 20, 2025 to November 21, 2025
Time zone — UTC+09 (Neryungri)
List of solar flares for November 21, 2025
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 |
|---|---|---|---|---|
| C3.8 | 22:21 | 22:30 | 22:33 | 4290 |
| C1.0 | 20:56 | 21:00 | 21:04 | 4284 |
| C1.0 | 16:55 | 17:03 | 17:11 | 4284 |
| C1.3 | 14:18 | 14:36 | 14:56 | — |
| C1.1 | 13:19 | 13:25 | 13:30 | 4287 |
| C1.1 | 11:58 | 12:02 | 12:06 | 4288 |
| C1.1 | 11:35 | 11:45 | 11:58 | 4288 |
| C1.1 | 09:49 | 09:55 | 10:03 | 4284 |
| C1.1 | 09:37 | 09:41 | 09:47 | 4284 |