Solar flares on May 21, 2024
The most powerful solar flare in 24 hours
M1.9 (strong) flare - May 21 at 3:31 PM
Solar activity index
Value as of the end of the day on May 21, 2024
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 20, 2024 to May 21, 2024
Time zone — UTC-04 (Toronto) — summer time
List of solar flares for May 21, 2024
The total number of solar flares of class C and higher — 9 flares
C class — 7 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.5 | 23:02 | 23:13 | 23:23 | 3679 |
| C3.9 | 18:28 | 18:40 | 18:58 | 3674 |
| M1.9 | 15:19 | 15:31 | 15:39 | 3679 |
| C6.9 | 11:53 | 12:05 | 12:14 | 3679 |
| C6.6 | 10:00 | 10:13 | 10:26 | 3683 |
| C7.0 | 09:29 | 09:36 | 09:41 | 3683 |
| C1.9 | 08:04 | 08:08 | 08:22 | 3683 |
| C4.8 | 03:20 | 03:32 | 03:39 | 3683 |
| C4.3 | 01:50 | 02:16 | 02:35 | 3683 |