Solar flares on December 18, 2013
The most powerful solar flare in 24 hours
C4.0 (normal) flare - December 18 at 6:29 AM
Solar activity index
Value as of the end of the day on December 18, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 17, 2013 to December 18, 2013
Time zone — UTC+07 (Norilsk)
List of solar flares for December 18, 2013
The total number of solar flares of class C and higher — 6 flares
C class — 6 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.8 | 22:07 | 22:10 | 22:15 | 1930 |
| C1.5 | 12:31 | 12:35 | 12:38 | 1917 |
| C1.3 | 11:37 | 11:41 | 11:45 | — |
| C4.0 | 06:25 | 06:29 | 06:32 | — |
| C1.9 | 04:28 | 04:34 | 04:40 | 1917 |
| C2.0 | 00:28 | 00:33 | 00:52 | — |