Solar flares on September 11, 2005
The most powerful solar flare in 24 hours
X2.1 (very strong) flare - September 11 at 1:11 AM
Solar activity index
Value as of the end of the day on September 11, 2005
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 10, 2005 to September 11, 2005
Time zone — UTC+03 (Tver)
List of solar flares for September 11, 2005
The total number of solar flares of class C and higher — 6 flares
C class — 2 | M class — 3 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.3 | 23:29 | 23:40 | 23:49 | — |
| M3.0 | 15:44 | 16:12 | 16:53 | 808 |
| C4.4 | 10:06 | 10:10 | 10:17 | 808 |
| C7.1 | 09:09 | 09:18 | 09:25 | 808 |
| M3.4 | 05:29 | 05:35 | 05:40 | 808 |
| X2.1 | 00:30 | 01:11 | 01:43 | 808 |