Solar flares on November 21, 2025
The most powerful solar flare in 24 hours
C3.8 (normal) flare - November 21 at 1:30 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+00 (Reykjavik)
List of solar flares for November 21, 2025
The total number of solar flares of class C and higher — 12 flares
C class — 12 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.1 | 22:29 | 22:37 | 22:42 | 4290 |
| C1.3 | 19:47 | 19:54 | 19:57 | 4284 |
| C1.6 | 17:45 | 17:50 | 17:53 | 4284 |
| C3.8 | 13:21 | 13:30 | 13:33 | 4290 |
| C1.0 | 11:56 | 12:00 | 12:04 | 4284 |
| C1.0 | 07:55 | 08:03 | 08:11 | 4284 |
| C1.3 | 05:18 | 05:36 | 05:56 | — |
| C1.1 | 04:19 | 04:25 | 04:30 | 4287 |
| C1.1 | 02:58 | 03:02 | 03:06 | 4288 |
| C1.1 | 02:35 | 02:45 | 02:58 | 4288 |
| C1.1 | 00:49 | 00:55 | 01:03 | 4284 |
| C1.1 | 00:37 | 00:41 | 00:47 | 4284 |