Solar flares on July 21, 2024
The most powerful solar flare in 24 hours
M3.9 (strong) flare - July 21 at 10:04 PM
Solar activity index
Value as of the end of the day on July 21, 2024
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 20, 2024 to July 21, 2024
Time zone — UTC-06 (Calgary) — summer time
List of solar flares for July 21, 2024
The total number of solar flares of class C and higher — 23 flares
C class — 17 | M class — 6 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.3 | 23:15 | 23:18 | 23:22 | 3762 |
| M1.9 | 22:14 | 22:34 | 22:43 | 3762 |
| M3.9 | 21:55 | 22:04 | 22:08 | 3762 |
| M1.4 | 21:27 | 21:33 | 21:37 | 3762 |
| C5.0 | 20:43 | 20:52 | 21:01 | 3762 |
| C8.3 | 19:59 | 20:06 | 20:14 | 3744 |
| C6.6 | 19:15 | 19:21 | 19:25 | 3762 |
| M3.2 | 17:21 | 17:28 | 17:34 | 3744 |
| C5.4 | 15:47 | 15:56 | 16:04 | 3762 |
| C4.5 | 14:21 | 14:27 | 14:33 | 3744 |
| C4.7 | 14:04 | 14:12 | 14:21 | 3744 |
| M1.0 | 10:18 | 10:31 | 10:59 | 3757 |
| C3.5 | 09:59 | 10:03 | 10:07 | 3751 |
| C3.3 | 09:49 | 09:55 | 09:59 | 3744 |
| C3.4 | 08:24 | 08:27 | 08:43 | 3762 |
| C4.5 | 07:25 | 07:31 | 07:35 | 3751 |
| C5.8 | 06:30 | 06:37 | 06:44 | 3751 |
| C5.4 | 06:13 | 06:18 | 06:24 | 3744 |
| C4.8 | 06:00 | 06:08 | 06:13 | — |
| C5.8 | 05:01 | 05:07 | 05:19 | 3751 |
| C4.1 | 04:09 | 04:17 | 04:31 | 3744 |
| M1.5 | 02:28 | 02:34 | 02:41 | 3751 |
| C6.0 | 01:37 | 01:43 | 01:50 | 3751 |