Solar flares on December 22, 2011
The most powerful solar flare in 24 hours
C1.9 (normal) flare - December 22 at 8:20 AM
Solar activity index
Value as of the end of the day on December 22, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 21, 2011 to December 22, 2011
Time zone — UTC-05 (Barrie)
List of solar flares for December 22, 2011
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 |
|---|---|---|---|---|
| C1.8 | 23:10 | 23:15 | 23:34 | — |
| C1.9 | 08:04 | 08:20 | 08:41 | 1281 |