Solar flares on June 28, 2026
The most powerful solar flare in 24 hours
C9.5 (normal) flare - June 28 at 5:44 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-04 (Lansing) — summer time
List of solar flares for June 28, 2026
The total number of solar flares of class C and higher — 11 flares
C class — 11 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.8 | 23:07 | 23:17 | 23:22 | 4479 |
| C3.0 | 22:43 | 22:50 | 22:56 | 4475 |
| C3.1 | 22:26 | 22:32 | 22:35 | 4479 |
| C5.1 | 20:32 | 20:41 | 20:49 | 4479 |
| C8.7 | 17:55 | 17:59 | 18:05 | 4479 |
| C9.5 | 17:38 | 17:44 | 17:52 | — |
| C3.3 | 16:50 | 16:59 | 17:03 | 4477 |
| C2.8 | 16:38 | 16:46 | 16:50 | 4479 |
| C2.7 | 11:01 | 11:09 | 11:15 | 4478 |
| C2.2 | 03:03 | 03:07 | 03:09 | 4475 |
| C2.4 | 02:46 | 02:54 | 03:03 | 4475 |