Solar flares on April 20, 2026
The most powerful solar flare in 24 hours
C1.6 (normal) flare - April 20 at 4:14 PM
Solar activity index
Value as of the end of the day on April 20, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 19, 2026 to April 20, 2026
Time zone — UTC+01 (London) — summer time
List of solar flares for April 20, 2026
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 15:58 | 16:14 | 16:25 | — |
| C1.0 | 09:33 | 09:45 | 09:52 | 4419 |