Solar flares on September 5, 2011
The most powerful solar flare in 24 hours
M1.6 (strong) flare - September 5 at 4:28 AM
Solar activity index
Value as of the end of the day on September 5, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 4, 2011 to September 5, 2011
Time zone — UTC+00
List of solar flares for September 5, 2011
The total number of solar flares of class C and higher — 4 flares
C class — 2 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.2 | 07:27 | 07:58 | 08:06 | 1286 |
| C2.8 | 06:50 | 06:54 | 06:57 | — |
| M1.6 | 04:08 | 04:28 | 04:32 | 1286 |
| C7.9 | 23:58 | 00:37 | 01:04 | — |