Solar flares on August 9, 2025
The most powerful solar flare in 24 hours
M1.7 (strong) flare - August 9 at 4:40 PM
Solar activity index
Value as of the end of the day on August 9, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 8, 2025 to August 9, 2025
Time zone — UTC+00
List of solar flares for August 9, 2025
The total number of solar flares of class C and higher — 17 flares
C class — 15 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 21:54 | 22:00 | 22:10 | — |
| C2.8 | 18:37 | 18:49 | 18:57 | 4168 |
| C3.8 | 17:26 | 17:30 | 17:35 | 4168 |
| M1.7 | 16:33 | 16:40 | 16:44 | 4168 |
| M1.6 | 16:10 | 16:21 | 16:28 | 4168 |
| C4.6 | 15:48 | 15:51 | 16:09 | 4168 |
| C4.1 | 13:07 | 13:15 | 13:20 | — |
| C2.5 | 12:47 | 12:50 | 12:53 | — |
| C2.3 | 12:15 | 12:19 | 12:22 | — |
| C3.3 | 11:34 | 11:46 | 11:52 | — |
| C6.1 | 10:40 | 10:50 | 10:53 | 4168 |
| C4.5 | 08:03 | 08:10 | 08:21 | 4168 |
| C9.2 | 06:47 | 07:02 | 07:09 | 4168 |
| C3.8 | 06:26 | 06:30 | 06:35 | 4168 |
| C4.6 | 03:13 | 03:18 | 03:22 | 4172 |
| C5.3 | 02:57 | 03:03 | 03:06 | 4168 |
| C3.0 | 01:16 | 01:28 | 01:47 | 4168 |