Solar flares on December 21, 2000
The most powerful solar flare in 24 hours
C3.5 (normal) flare - December 21 at 12:43 AM
Solar activity index
Value as of the end of the day on December 21, 2000
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 20, 2000 to December 21, 2000
Time zone — UTC+04 (Samara)
List of solar flares for December 21, 2000
The total number of solar flares of class C and higher — 11 flares
C class — 11 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 13:38 | 13:46 | 13:53 | — |
| C2.8 | 11:27 | 11:33 | 11:36 | 9280 |
| C1.9 | 10:28 | 10:44 | 11:10 | — |
| C1.8 | 09:25 | 09:33 | 09:38 | 9280 |
| C1.6 | 06:40 | 06:43 | 06:49 | 9280 |
| C1.9 | 06:13 | 06:14 | 06:18 | 9280 |
| C2.7 | 05:45 | 05:58 | 06:07 | 9280 |
| C2.1 | 04:58 | 05:15 | 05:25 | 9280 |
| C2.5 | 03:17 | 03:32 | 04:05 | 9280 |
| C2.2 | 03:00 | 03:03 | 03:05 | 9280 |
| C3.5 | 00:35 | 00:43 | 00:51 | 9279 |