Solar flares on November 20, 2001
The most powerful solar flare in 24 hours
C5.1 (normal) flare - November 20 at 2:42 PM
Solar activity index
Value as of the end of the day on November 20, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from November 19, 2001 to November 20, 2001
Time zone — UTC+00
List of solar flares for November 20, 2001
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.9 | 21:52 | 22:10 | 22:30 | 9704 |
| C1.7 | 21:24 | 21:29 | 21:34 | — |
| C1.2 | 18:02 | 18:13 | 18:28 | — |
| C5.1 | 14:30 | 14:42 | 14:51 | 9704 |
| C1.8 | 13:35 | 13:40 | 13:49 | — |
| C2.2 | 11:05 | 11:23 | 11:35 | 9704 |
| C1.4 | 07:45 | 07:52 | 08:03 | — |
| C3.4 | 01:44 | 02:06 | 02:21 | 9704 |
| C2.1 | 00:48 | 00:56 | 01:06 | — |