Solar flares on June 28, 2026
The most powerful solar flare in 24 hours
C9.5 (normal) flare - June 28 at 9:44 PM
Solar activity index
Value as of the end of the day on June 28, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 27, 2026 to June 28, 2026
Time zone — UTC+00
List of solar flares for June 28, 2026
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C8.7 | 21:55 | 21:59 | 22:05 | 4479 |
| C9.5 | 21:38 | 21:44 | 21:52 | — |
| C3.3 | 20:50 | 20:59 | 21:03 | 4477 |
| C2.8 | 20:38 | 20:46 | 20:50 | 4479 |
| C2.7 | 15:01 | 15:09 | 15:15 | 4478 |
| C2.2 | 07:03 | 07:07 | 07:09 | 4475 |
| C2.4 | 06:46 | 06:54 | 07:03 | 4475 |
| C4.1 | 01:44 | 01:55 | 02:00 | 4475 |