Solar flares on November 21, 2003
The most powerful solar flare in 24 hours
M5.8 (strong) flare - November 21 at 2:53 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+03 (Moscow)
List of solar flares for November 21, 2003
The total number of solar flares of class C and higher — 7 flares
C class — 6 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.1 | 23:39 | 23:43 | 23:47 | 508 |
| C3.4 | 22:08 | 22:16 | 22:21 | — |
| C1.0 | 15:49 | 15:53 | 15:57 | — |
| C4.3 | 12:37 | 12:43 | 12:45 | 506 |
| C1.0 | 05:30 | 05:33 | 05:37 | — |
| M5.8 | 02:42 | 02:53 | 02:58 | 501 |
| C1.3 | 01:42 | 01:58 | 02:03 | — |