Solar flares on September 11, 2012
The most powerful solar flare in 24 hours
C4.1 (normal) flare - September 11 at 5:07 PM
Solar activity index
Value as of the end of the day on September 11, 2012
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 10, 2012 to September 11, 2012
Time zone — UTC-05 (Pierre) — summer time
List of solar flares for September 11, 2012
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 |
|---|---|---|---|---|
| C1.3 | 20:01 | 20:04 | 20:06 | — |
| C4.1 | 16:43 | 17:07 | 17:46 | 1564 |
| C2.9 | 15:54 | 15:58 | 16:01 | — |
| C2.1 | 05:28 | 06:10 | 06:43 | 1564 |
| C1.1 | 03:25 | 04:32 | 04:41 | 1567 |