Solar flares on December 31, 2004
The most powerful solar flare in 24 hours
X1.7 (very strong) flare - December 31 at 7:31 PM
Solar activity index
Value as of the end of the day on December 31, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 30, 2004 to December 31, 2004
Time zone — UTC-05 (Thunder bay)
List of solar flares for December 31, 2004
The total number of solar flares of class C and higher — 3 flares
C class — 1 | M class — 1 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| X1.7 | 19:01 | 19:31 | 19:39 | 715 |
| C6.8 | 09:52 | 09:59 | 10:04 | 715 |
| M1.2 | 09:38 | 09:45 | 09:48 | 715 |