Solar flares on December 13, 2007
The most powerful solar flare in 24 hours
C4.5 (normal) flare - December 13 at 1:03 PM
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+03 (Moscow)
List of solar flares for December 13, 2007
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 |
|---|---|---|---|---|
| C1.0 | 16:59 | 17:06 | 17:12 | — |
| C4.5 | 12:39 | 13:03 | 13:09 | 978 |