Solar flares on December 13, 2007
The most powerful solar flare in 24 hours
C4.5 (normal) flare - December 13 at 10:03 AM
Solar activity index
Value as of the end of the day on December 13, 2007
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 12, 2007 to December 13, 2007
Time zone — UTC+00 (London)
List of solar flares for December 13, 2007
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.7 | 21:52 | 22:00 | 22:19 | 978 |
| C1.0 | 13:59 | 14:06 | 14:12 | — |
| C4.5 | 09:39 | 10:03 | 10:09 | 978 |