Solar flares on July 17, 2025
The most powerful solar flare in 24 hours
C5.9 (normal) flare - July 17 at 4:28 AM
Solar activity index
Value as of the end of the day on July 17, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 16, 2025 to July 17, 2025
Time zone — UTC-05 (Dallas) — summer time
List of solar flares for July 17, 2025
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.2 | 22:35 | 22:42 | 22:48 | 4136 |
| C2.4 | 14:49 | 14:53 | 14:57 | 4136 |
| C2.8 | 08:09 | 08:13 | 08:16 | 4142 |
| C5.9 | 04:17 | 04:28 | 04:36 | 4136 |