Solar flares on November 21, 2003
The most powerful solar flare in 24 hours
C4.3 (normal) flare - November 21 at 9:43 AM
Solar activity index
Value as of the end of the day on November 21, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from November 20, 2003 to November 21, 2003
Time zone — UTC+00 (London)
List of solar flares for November 21, 2003
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.1 | 20:39 | 20:43 | 20:47 | 508 |
| C3.4 | 19:08 | 19:16 | 19:21 | — |
| C1.0 | 12:49 | 12:53 | 12:57 | — |
| C4.3 | 09:37 | 09:43 | 09:45 | 506 |
| C1.0 | 02:30 | 02:33 | 02:37 | — |