Solar flares on May 28, 2025
The most powerful solar flare in 24 hours
C3.0 (normal) flare - May 28 at 4:31 PM
Solar activity index
Value as of the end of the day on May 28, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 27, 2025 to May 28, 2025
Time zone — UTC+00
List of solar flares for May 28, 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 |
|---|---|---|---|---|
| C1.5 | 22:54 | 23:00 | 23:15 | 4100 |
| C1.4 | 17:09 | 17:14 | 17:18 | 4100 |
| C3.0 | 16:21 | 16:31 | 16:38 | 4099 |
| C1.5 | 15:32 | 15:39 | 15:46 | 4099 |
| C1.2 | 12:20 | 12:25 | 12:36 | 4099 |
| C2.0 | 11:40 | 11:47 | 11:54 | 4099 |
| C2.8 | 10:34 | 10:45 | 10:49 | — |
| C1.4 | 06:55 | 07:04 | 07:10 | 4099 |
| C1.9 | 05:55 | 05:58 | 06:02 | 4099 |
| C1.8 | 05:37 | 05:48 | 05:54 | 4099 |
| C2.1 | 01:18 | 01:21 | 01:25 | 4100 |