Solar flares on April 20, 2026
The most powerful solar flare in 24 hours
C1.6 (normal) flare - April 20 at 11:14 AM
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-04 (Atlanta) — summer time
List of solar flares for April 20, 2026
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.3 | 21:03 | 21:15 | 21:24 | — |
| C1.6 | 10:58 | 11:14 | 11:25 | — |
| C1.0 | 04:33 | 04:45 | 04:52 | 4419 |