Solar flares on July 28, 2011
The most powerful solar flare in 24 hours
C5.2 (normal) flare - July 28 at 2:25 AM
Solar activity index
Value as of the end of the day on July 28, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 27, 2011 to July 28, 2011
Time zone — UTC+00
List of solar flares for July 28, 2011
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 05:03 | 05:08 | 05:11 | 1260 |
| C2.2 | 04:39 | 04:44 | 04:53 | 1260 |
| C5.2 | 02:19 | 02:25 | 02:29 | 1260 |
| C1.8 | 01:19 | 01:31 | 01:36 | — |
| C2.5 | 00:16 | 00:26 | 00:34 | 1260 |