Solar flares on December 20, 2002
The most powerful solar flare in 24 hours
M6.8 (strong) flare - December 20 at 4:18 PM
Solar activity index
Value as of the end of the day on December 20, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 19, 2002 to December 20, 2002
Time zone — UTC+03 (Murmansk)
List of solar flares for December 20, 2002
The total number of solar flares of class C and higher — 11 flares
C class — 9 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.2 | 23:10 | 23:14 | 23:16 | 226 |
| C3.5 | 21:57 | 22:04 | 22:06 | — |
| M6.8 | 16:13 | 16:18 | 16:20 | 226 |
| C4.2 | 15:47 | 15:53 | 15:57 | — |
| C2.7 | 14:25 | 14:28 | 14:30 | — |
| C8.5 | 11:20 | 11:33 | 11:45 | 226 |
| C1.9 | 10:57 | 11:02 | 11:07 | 226 |
| C1.6 | 08:36 | 08:41 | 08:55 | 230 |
| C1.4 | 04:42 | 04:45 | 04:47 | 230 |
| C4.5 | 03:32 | 03:37 | 03:42 | 226 |
| M2.7 | 00:34 | 00:53 | 01:17 | 229 |