Solar flares on October 19, 2011
The most powerful solar flare in 24 hours
C5.5 (normal) flare - October 19 at 4:55 AM
Solar activity index
Value as of the end of the day on October 19, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 18, 2011 to October 19, 2011
Time zone — UTC+00
List of solar flares for October 19, 2011
The total number of solar flares of class C and higher — 6 flares
C class — 6 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.5 | 20:31 | 20:37 | 20:39 | 1314 |
| C1.7 | 19:55 | 19:58 | 20:00 | 1324 |
| C3.4 | 18:45 | 18:49 | 18:51 | 1324 |
| C2.4 | 16:31 | 16:34 | 16:37 | 1324 |
| C5.5 | 04:49 | 04:55 | 05:00 | 1324 |
| C1.1 | 01:33 | 01:36 | 01:40 | — |