Solar flares on November 21, 2011
The most powerful solar flare in 24 hours
C3.1 (normal) flare - November 21 at 1:10 AM
Solar activity index
Value as of the end of the day on November 21, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from November 20, 2011 to November 21, 2011
Time zone — UTC+01 (Oslo)
List of solar flares for November 21, 2011
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.3 | 19:19 | 19:28 | 19:36 | 1356 |
| C1.8 | 05:48 | 05:53 | 05:58 | 1354 |
| C3.1 | 01:03 | 01:10 | 01:13 | — |
| C2.1 | 23:59 | 00:05 | 00:13 | 1354 |