Solar flares on April 17, 2025
The most powerful solar flare in 24 hours
C4.6 (normal) flare - April 17 at 4:22 PM
Solar activity index
Value as of the end of the day on April 17, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 16, 2025 to April 17, 2025
Time zone — UTC+02 (Vienna) — summer time
List of solar flares for April 17, 2025
The total number of solar flares of class C and higher — 6 flares
C class — 6 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 23:44 | 23:53 | 00:00 | 4066 |
| C4.6 | 16:11 | 16:22 | 16:34 | 4064 |
| C2.5 | 16:01 | 16:05 | 16:11 | 4062 |
| C2.8 | 11:32 | 11:46 | 11:52 | 4062 |
| C1.5 | 06:58 | 07:05 | 07:08 | 4060 |
| C3.1 | 01:41 | 01:54 | 02:06 | 4062 |