Solar flares on December 18, 2015
The most powerful solar flare in 24 hours
C4.6 (normal) flare - December 18 at 5:09 AM
Solar activity index
Value as of the end of the day on December 18, 2015
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 17, 2015 to December 18, 2015
Time zone — UTC+00 (London)
List of solar flares for December 18, 2015
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 |
|---|---|---|---|---|
| C4.6 | 04:55 | 05:09 | 05:22 | 2469 |
| C1.4 | 03:48 | 04:00 | 04:12 | 2469 |