Solar flares on December 4, 2002
The most powerful solar flare in 24 hours
M2.5 (strong) flare - December 4 at 5:49 PM
Solar activity index
Value as of the end of the day on December 4, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 3, 2002 to December 4, 2002
Time zone — UTC-05 (Columbus)
List of solar flares for December 4, 2002
The total number of solar flares of class C and higher — 2 flares
C class — 1 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.1 | 23:39 | 23:50 | 00:02 | — |
| M2.5 | 17:41 | 17:49 | 17:57 | 213 |