Solar flares on August 17, 2011
The most powerful solar flare in 24 hours
C3.4 (normal) flare - August 17 at 12:42 PM
Solar activity index
Value as of the end of the day on August 17, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 16, 2011 to August 17, 2011
Time zone — UTC+02 (Rome) — summer time
List of solar flares for August 17, 2011
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.6 | 18:16 | 18:31 | 18:45 | 1272 |
| C3.4 | 12:19 | 12:42 | 13:08 | 1271 |
| C2.3 | 06:19 | 06:29 | 07:07 | 1272 |
| C1.9 | 03:44 | 04:54 | 05:44 | 1272 |