Solar flares on November 20, 2025
The most powerful solar flare in 24 hours
C2.3 (normal) flare - November 20 at 10:04 AM
Solar activity index
Value as of the end of the day on November 20, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from November 19, 2025 to November 20, 2025
Time zone — UTC+00 (Reykjavik)
List of solar flares for November 20, 2025
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.3 | 09:59 | 10:04 | 10:09 | 4286 |
| C1.8 | 09:21 | 09:28 | 09:34 | 4284 |
| C1.8 | 07:54 | 08:23 | 09:08 | — |
| C1.3 | 07:23 | 07:32 | 07:36 | — |
| C1.6 | 04:00 | 04:11 | 04:19 | — |
| C1.4 | 03:39 | 03:57 | 04:00 | — |
| C1.1 | 03:24 | 03:35 | 03:39 | — |
| C1.0 | 03:04 | 03:14 | 03:24 | — |