Solar flares on September 7, 2011
The most powerful solar flare in 24 hours
X2.1 (very strong) flare - September 7 at 1:20 AM
Solar activity index
Value as of the end of the day on September 7, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 6, 2011 to September 7, 2011
Time zone — UTC+03 (Moscow)
List of solar flares for September 7, 2011
The total number of solar flares of class C and higher — 2 flares
C class — 1 | M class — 0 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.0 | 22:55 | 23:06 | 23:19 | — |
| X2.1 | 01:12 | 01:20 | 01:24 | 1283 |