Solar flares on August 9, 2011
The most powerful solar flare in 24 hours
X6.9 (very strong) flare - August 9 at 11:05 AM
Solar activity index
Value as of the end of the day on August 9, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 8, 2011 to August 9, 2011
Time zone — UTC+03 (Moscow)
List of solar flares for August 9, 2011
The total number of solar flares of class C and higher — 8 flares
C class — 6 | M class — 1 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.0 | 21:04 | 21:11 | 21:42 | — |
| C2.4 | 18:43 | 18:54 | 19:04 | 1263 |
| C2.2 | 16:29 | 16:45 | 16:57 | 1263 |
| X6.9 | 10:48 | 11:05 | 11:08 | 1263 |
| C1.4 | 10:19 | 10:23 | 10:27 | 1263 |
| M2.5 | 06:19 | 06:54 | 07:08 | 1263 |
| C5.3 | 02:02 | 02:22 | 02:59 | 1263 |
| C7.7 | 01:00 | 01:09 | 01:20 | 1263 |