Solar flares on December 17, 2003
The most powerful solar flare in 24 hours
C3.4 (normal) flare - December 17 at 11:43 PM
Solar activity index
Value as of the end of the day on December 17, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 16, 2003 to December 17, 2003
Time zone — UTC-09 (Anchorage)
List of solar flares for December 17, 2003
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.4 | 23:39 | 23:43 | 23:47 | — |
| C1.3 | 19:12 | 19:18 | 19:27 | — |
| C2.1 | 16:46 | 16:51 | 16:55 | — |
| C1.3 | 16:01 | 16:12 | 16:26 | — |
| C1.1 | 15:28 | 15:32 | 15:39 | — |
| C1.3 | 11:11 | 11:17 | 11:23 | 525 |
| C1.0 | 04:03 | 04:09 | 04:16 | 521 |