Solar flares on September 26, 2011
The most powerful solar flare in 24 hours
M4.0 (strong) flare - September 26 at 5:08 AM
Solar activity index
Value as of the end of the day on September 26, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 25, 2011 to September 26, 2011
Time zone — UTC+00
List of solar flares for September 26, 2011
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 |
|---|---|---|---|---|
| C1.8 | 20:04 | 20:07 | 20:09 | 1302 |
| C4.8 | 16:43 | 16:55 | 17:06 | 1302 |
| M2.6 | 14:37 | 14:46 | 15:02 | 1302 |
| C5.1 | 13:26 | 13:40 | 13:57 | 1302 |
| C3.3 | 09:58 | 10:01 | 10:12 | — |
| C3.3 | 09:40 | 09:43 | 09:46 | 1302 |
| C8.8 | 07:45 | 07:50 | 07:52 | 1302 |
| C4.7 | 07:28 | 07:32 | 07:38 | 1302 |
| M4.0 | 05:06 | 05:08 | 05:13 | 1302 |
| C9.5 | 01:39 | 01:47 | 01:57 | 1303 |
| C5.2 | 00:35 | 00:47 | 00:58 | 1302 |