Solar flares on May 20, 2025
The most powerful solar flare in 24 hours
C5.3 (normal) flare - May 20 at 10:25 PM
Solar activity index
Value as of the end of the day on May 20, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 19, 2025 to May 20, 2025
Time zone — UTC+00
List of solar flares for May 20, 2025
The total number of solar flares of class C and higher — 11 flares
C class — 11 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 23:49 | 23:59 | 00:01 | 4087 |
| C1.6 | 22:39 | 22:47 | 22:51 | 4093 |
| C5.3 | 22:18 | 22:25 | 22:28 | 4087 |
| C2.1 | 21:20 | 21:30 | 21:34 | 4087 |
| C1.2 | 20:24 | 20:32 | 20:37 | 4093 |
| C2.9 | 13:00 | 13:10 | 13:14 | 4093 |
| C2.5 | 10:54 | 10:59 | 11:08 | 4093 |
| C2.7 | 10:07 | 10:21 | 10:34 | 4093 |
| C5.3 | 05:45 | 05:54 | 06:00 | 4093 |
| C1.0 | 05:34 | 05:38 | 05:42 | 4093 |
| C1.3 | 01:16 | 01:26 | 01:32 | 4093 |