Solar flares on April 22, 2021
The most powerful solar flare in 24 hours
C8.5 (normal) flare - April 22 at 4:11 PM
Solar activity index
Value as of the end of the day on April 22, 2021
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 21, 2021 to April 22, 2021
Time zone — UTC-04 (Kitchener) — summer time
List of solar flares for April 22, 2021
The total number of solar flares of class C and higher — 13 flares
C class — 13 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 22:37 | 22:52 | 23:02 | 2817 |
| C1.3 | 21:32 | 21:52 | 22:02 | 2817 |
| C8.5 | 16:02 | 16:11 | 16:20 | 2817 |
| C1.0 | 11:44 | 11:59 | 12:05 | 2816 |
| C2.5 | 10:13 | 10:30 | 10:43 | 2816 |
| C2.8 | 08:18 | 08:27 | 08:42 | 2816 |
| C3.7 | 06:40 | 06:49 | 07:03 | 2817 |
| C1.4 | 06:03 | 06:08 | 06:14 | 2817 |
| C4.3 | 05:14 | 05:21 | 05:41 | 2817 |
| C2.3 | 03:16 | 03:23 | 03:27 | 2817 |
| C1.7 | 01:50 | 01:57 | 02:02 | 2817 |
| C2.7 | 01:00 | 01:06 | 01:10 | 2816 |
| C3.8 | 00:10 | 00:35 | 01:00 | 2816 |