Solar flares on December 17, 2013
The most powerful solar flare in 24 hours
C4.0 (normal) flare - December 17 at 5:29 PM
Solar activity index
Value as of the end of the day on December 17, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 16, 2013 to December 17, 2013
Time zone — UTC-06 (Regina)
List of solar flares for December 17, 2013
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 23:31 | 23:35 | 23:38 | 1917 |
| C1.3 | 22:37 | 22:41 | 22:45 | — |
| C4.0 | 17:25 | 17:29 | 17:32 | — |
| C1.9 | 15:28 | 15:34 | 15:40 | 1917 |
| C2.0 | 11:28 | 11:33 | 11:52 | — |