Solar flares on December 20, 2003
The most powerful solar flare in 24 hours
C2.6 (normal) flare - December 20 at 1:16 AM
Solar activity index
Value as of the end of the day on December 20, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 19, 2003 to December 20, 2003
Time zone — UTC+01 (Vienna)
List of solar flares for December 20, 2003
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.8 | 15:19 | 15:31 | 15:38 | 525 |
| C1.8 | 03:04 | 03:22 | 03:43 | 525 |
| C1.5 | 02:54 | 02:58 | 03:01 | 525 |
| C2.6 | 01:07 | 01:16 | 01:20 | 525 |