Solar flares on December 13, 2011
The most powerful solar flare in 24 hours
C1.4 (normal) flare - December 13 at 11:00 AM
Solar activity index
Value as of the end of the day on December 13, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 12, 2011 to December 13, 2011
Time zone — UTC+03 (Sochi)
List of solar flares for December 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 | 17:11 | 17:14 | 17:17 | 1367 |
| C1.4 | 10:46 | 11:00 | 11:07 | 1367 |