Solar flares on April 28, 2025
The most powerful solar flare in 24 hours
C3.9 (normal) flare - April 28 at 11:55 PM
Solar activity index
Value as of the end of the day on April 28, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 27, 2025 to April 28, 2025
Time zone — UTC+00
List of solar flares for April 28, 2025
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.9 | 23:44 | 23:55 | 00:00 | 4070 |
| C1.6 | 23:20 | 23:23 | 23:26 | 4079 |
| C1.7 | 23:08 | 23:11 | 23:14 | 4079 |
| C3.2 | 21:40 | 21:52 | 22:01 | 4079 |
| C1.4 | 20:05 | 20:10 | 20:16 | 4078 |
| C1.7 | 16:59 | 17:09 | 17:20 | 4078 |
| C2.2 | 05:46 | 06:02 | 06:21 | 4069 |