Solar flares on December 16, 2009
The most powerful solar flare in 24 hours
C5.3 (normal) flare - December 16 at 2:24 AM
Solar activity index
Value as of the end of the day on December 16, 2009
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 15, 2009 to December 16, 2009
Time zone — UTC+01 (Oslo)
List of solar flares for December 16, 2009
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 |
|---|---|---|---|---|
| C1.4 | 22:35 | 22:49 | 23:25 | — |
| C3.7 | 13:36 | 14:02 | 14:20 | 1035 |
| C5.3 | 02:02 | 02:24 | 02:35 | 1035 |