Solar flares on July 20, 2025
The most powerful solar flare in 24 hours
C6.5 (normal) flare - July 20 at 7:37 AM
Solar activity index
Value as of the end of the day on July 20, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 19, 2025 to July 20, 2025
Time zone — UTC-08 (Anchorage) — summer time
List of solar flares for July 20, 2025
The total number of solar flares of class C and higher — 6 flares
C class — 6 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.1 | 16:02 | 16:09 | 16:11 | 4143 |
| C6.5 | 07:28 | 07:37 | 07:52 | 4136 |
| C2.5 | 06:47 | 06:54 | 07:00 | 4136 |
| C2.8 | 04:04 | 04:13 | 04:25 | 4136 |
| C2.9 | 03:43 | 03:57 | 04:04 | 4136 |
| C1.9 | 01:41 | 01:51 | 02:04 | 4149 |