Solar flares on September 22, 2011
The most powerful solar flare in 24 hours
X1.4 (very strong) flare - September 22 at 3:01 PM
Solar activity index
Value as of the end of the day on September 22, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 21, 2011 to September 22, 2011
Time zone — UTC+04 (Samara)
List of solar flares for September 22, 2011
The total number of solar flares of class C and higher — 5 flares
C class — 3 | M class — 1 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| X1.4 | 14:29 | 15:01 | 15:44 | 1302 |
| M1.1 | 13:53 | 14:00 | 14:09 | 1302 |
| C8.9 | 12:49 | 13:05 | 13:09 | 1302 |
| C6.6 | 08:20 | 08:28 | 08:41 | 1295 |
| C2.0 | 00:31 | 00:36 | 00:40 | 1295 |