Solar flares on September 13, 2011
The most powerful solar flare in 24 hours
C9.9 (normal) flare - September 13 at 2:24 AM
Solar activity index
Value as of the end of the day on September 13, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 12, 2011 to September 13, 2011
Time zone — UTC+05:30 (Ranchi)
List of solar flares for September 13, 2011
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.1 | 09:42 | 09:49 | 10:02 | — |
| C9.9 | 02:00 | 02:24 | 03:21 | 1295 |