Solar flares on May 31, 2023
The most powerful solar flare in 24 hours
M4.2 (strong) flare - May 31 at 11:52 PM
Solar activity index
Value as of the end of the day on May 31, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 30, 2023 to May 31, 2023
Time zone — UTC+01 (London) — summer time
List of solar flares for May 31, 2023
The total number of solar flares of class C and higher — 19 flares
C class — 16 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M4.2 | 23:14 | 23:52 | 00:12 | 3323 |
| C6.8 | 21:40 | 21:48 | 22:02 | 3323 |
| C9.6 | 20:53 | 21:10 | 21:27 | 3323 |
| C3.5 | 17:44 | 17:49 | 17:53 | — |
| C2.5 | 17:09 | 17:20 | 17:36 | 3315 |
| C2.1 | 16:43 | 16:47 | 16:51 | — |
| C2.8 | 15:55 | 16:00 | 16:09 | — |
| C2.9 | 14:29 | 14:33 | 14:43 | — |
| M1.0 | 13:23 | 13:26 | 13:30 | 3319 |
| C5.3 | 11:50 | 12:03 | 12:22 | — |
| C2.7 | 11:10 | 11:20 | 11:35 | — |
| C6.1 | 09:16 | 09:31 | 09:49 | 3323 |
| C4.6 | 08:35 | 08:43 | 08:52 | 3323 |
| C5.7 | 07:01 | 07:09 | 07:15 | 3323 |
| C5.7 | 06:14 | 06:25 | 06:45 | 3319 |
| M1.3 | 05:24 | 05:38 | 05:44 | 3323 |
| C3.8 | 04:38 | 04:47 | 04:59 | 3323 |
| C7.5 | 02:59 | 03:09 | 03:17 | 3323 |
| C4.3 | 01:25 | 02:02 | 02:32 | 3323 |