Solar flares on April 9, 2025
The most powerful solar flare in 24 hours
C9.0 (normal) flare - April 9 at 1:30 PM
Solar activity index
Value as of the end of the day on April 9, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 8, 2025 to April 9, 2025
Time zone — UTC-04 (Toronto) — summer time
List of solar flares for April 9, 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 |
|---|---|---|---|---|
| C9.0 | 13:22 | 13:30 | 13:37 | 4055 |
| C2.1 | 10:56 | 11:05 | 11:10 | — |
| C2.7 | 08:16 | 08:31 | 08:44 | 4055 |
| C2.2 | 06:53 | 07:03 | 07:15 | 4055 |
| C2.5 | 05:33 | 05:49 | 06:02 | 4055 |
| C2.2 | 04:32 | 04:45 | 04:57 | — |
| C3.3 | 01:16 | 01:27 | 01:34 | 4048 |