Solar flares on May 15, 2026
The most powerful solar flare in 24 hours
C9.5 (normal) flare - May 15 at 4:14 PM
Solar activity index
Value as of the end of the day on May 15, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 14, 2026 to May 15, 2026
Time zone — UTC+00
List of solar flares for May 15, 2026
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 22:41 | 22:50 | 22:55 | 4435 |
| C9.5 | 16:05 | 16:14 | 16:18 | 4435 |
| C1.1 | 13:40 | 13:50 | 13:56 | — |
| C6.7 | 13:10 | 13:13 | 13:17 | 4435 |
| C4.3 | 11:43 | 11:50 | 11:54 | 4435 |
| C3.3 | 02:52 | 03:09 | 03:30 | 4436 |
| C1.0 | 01:48 | 01:52 | 01:55 | 4438 |