Solar flares on July 28, 2026
The most powerful solar flare in 24 hours
C1.7 (normal) flare - July 28 at 7:45 PM
Solar activity index
Value as of the end of the day on July 28, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 27, 2026 to July 28, 2026
Time zone — UTC-04 (Providence) — summer time
List of solar flares for July 28, 2026
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 20:19 | 20:22 | 20:25 | 4498 |
| C1.7 | 19:36 | 19:45 | 19:55 | 4498 |
| C1.4 | 07:13 | 07:20 | 07:23 | 4498 |