Solar flares on August 17, 2026
The most powerful solar flare in 24 hours
C3.2 (normal) flare - August 17 at 11:47 AM
Solar activity index
Value as of the end of the day on August 17, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 16, 2026 to August 17, 2026
Time zone — UTC-06 (Cheyenne) — summer time
List of solar flares for August 17, 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 |
|---|---|---|---|---|
| C1.4 | 13:28 | 13:35 | 13:42 | 4510 |
| C3.2 | 11:42 | 11:47 | 11:49 | 4510 |
| C1.7 | 11:05 | 11:17 | 11:22 | 4510 |
| C2.0 | 10:18 | 10:53 | 11:05 | 4510 |
| C1.6 | 04:51 | 04:58 | 05:02 | 4507 |
| C1.7 | 04:27 | 04:30 | 04:40 | 4507 |
| C2.0 | 23:57 | 00:22 | 00:48 | 4510 |