Solar flares on December 20, 2003
The most powerful solar flare in 24 hours
C4.5 (normal) flare - December 20 at 9:46 PM
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-05 (Jacksonville)
List of solar flares for December 20, 2003
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 |
|---|---|---|---|---|
| C2.0 | 23:10 | 23:16 | 23:21 | 0 |
| C4.5 | 21:38 | 21:46 | 22:14 | 528 |
| C1.8 | 09:19 | 09:31 | 09:38 | 525 |