Solar flares on July 28, 2023
The most powerful solar flare in 24 hours
M4.1 (strong) flare - July 28 at 5:58 PM
Solar activity index
Value as of the end of the day on July 28, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 27, 2023 to July 28, 2023
Time zone — UTC+02 (Monaco)
List of solar flares for July 28, 2023
The total number of solar flares of class C and higher — 11 flares
C class — 9 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.9 | 22:42 | 22:58 | 23:10 | 3390 |
| C2.2 | 22:02 | 22:06 | 22:10 | 3387 |
| M4.1 | 17:39 | 17:58 | 18:13 | 3376 |
| C7.8 | 16:44 | 16:51 | 17:05 | 3390 |
| C2.9 | 15:54 | 15:59 | 16:04 | 3386 |
| C3.0 | 15:39 | 15:44 | 15:54 | 3390 |
| C3.9 | 12:51 | 13:01 | 13:10 | 3380 |
| C3.3 | 09:50 | 09:58 | 10:03 | 3376 |
| C6.7 | 08:26 | 08:34 | 08:40 | 3376 |
| C7.4 | 03:33 | 03:46 | 04:20 | 3376 |
| M1.7 | 00:04 | 00:34 | 01:05 | 3388 |