Solar flares on May 17, 2023
The most powerful solar flare in 24 hours
M1.2 (strong) flare - May 17 at 11:55 PM
Solar activity index
Value as of the end of the day on May 17, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 16, 2023 to May 17, 2023
Time zone — UTC-07 (Phoenix)
List of solar flares for May 17, 2023
The total number of solar flares of class C and higher — 13 flares
C class — 11 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.2 | 23:48 | 23:55 | 00:02 | 3311 |
| M1.0 | 23:13 | 23:26 | 23:38 | 3311 |
| C2.2 | 21:51 | 21:57 | 22:01 | — |
| C3.8 | 21:07 | 21:12 | 21:16 | — |
| C8.6 | 20:03 | 20:21 | 20:39 | — |
| C9.5 | 14:38 | 14:48 | 15:01 | — |
| C5.0 | 12:24 | 12:38 | 12:58 | — |
| C6.2 | 11:34 | 11:44 | 11:54 | — |
| C7.4 | 09:14 | 09:28 | 09:46 | — |
| C4.3 | 08:19 | 08:30 | 08:53 | 3309 |
| C6.4 | 07:30 | 07:43 | 07:58 | — |
| C2.3 | 01:23 | 01:28 | 01:32 | 3310 |
| C2.1 | 00:52 | 00:58 | 01:02 | 3310 |