Solar flares on August 17, 2026
The most powerful solar flare in 24 hours
C3.2 (normal) flare - August 17 at 5:47 PM
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+00
List of solar flares for August 17, 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 |
|---|---|---|---|---|
| C1.4 | 19:28 | 19:35 | 19:42 | 4510 |
| C3.2 | 17:42 | 17:47 | 17:49 | 4510 |
| C1.7 | 17:05 | 17:17 | 17:22 | 4510 |
| C2.0 | 16:18 | 16:53 | 17:05 | 4510 |
| C1.6 | 10:51 | 10:58 | 11:02 | 4507 |
| C1.7 | 10:27 | 10:30 | 10:40 | 4507 |
| C2.0 | 05:57 | 06:22 | 06:48 | 4510 |
| C2.3 | 02:13 | 02:24 | 02:34 | 4507 |