Solar flares on June 17, 2026
The most powerful solar flare in 24 hours
C2.5 (normal) flare - June 17 at 10:06 AM
Solar activity index
Value as of the end of the day on June 17, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 16, 2026 to June 17, 2026
Time zone — UTC-05 (Chicago) — summer time
List of solar flares for June 17, 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 |
|---|---|---|---|---|
| C2.5 | 09:57 | 10:06 | 10:10 | 4464 |
| C1.2 | 07:07 | 07:28 | 07:36 | 4465 |
| C1.1 | 00:15 | 00:20 | 00:22 | 4465 |