Solar flares on February 21, 2023
The most powerful solar flare in 24 hours
M5.0 (strong) flare - February 21 at 11:17 PM
Solar activity index
Value as of the end of the day on February 21, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 20, 2023 to February 21, 2023
Time zone — UTC+03 (Nalchik)
List of solar flares for February 21, 2023
The total number of solar flares of class C and higher — 11 flares
C class — 9 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M5.0 | 22:57 | 23:17 | 23:30 | 3234 |
| C6.3 | 22:23 | 22:36 | 22:50 | 3234 |
| C4.0 | 21:26 | 21:38 | 21:47 | 3234 |
| C2.6 | 17:20 | 17:27 | 17:32 | 3226 |
| C6.1 | 15:17 | 15:21 | 15:25 | 3229 |
| M4.7 | 14:14 | 14:23 | 14:31 | 3234 |
| C9.6 | 07:35 | 07:44 | 07:52 | 3226 |
| C9.1 | 06:40 | 07:02 | 07:16 | — |
| C2.1 | 02:19 | 02:27 | 02:36 | 3234 |
| C2.8 | 01:14 | 01:23 | 01:32 | 3234 |
| C1.9 | 00:58 | 01:03 | 01:07 | 3229 |