Solar flares on October 19, 2011
The most powerful solar flare in 24 hours
M1.6 (strong) flare - October 19 at 11:25 PM
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-04 (Ottawa) — summer time
List of solar flares for October 19, 2011
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 |
|---|---|---|---|---|
| M1.6 | 23:10 | 23:25 | 23:44 | — |
| C1.5 | 22:00 | 22:03 | 22:05 | — |
| C3.5 | 16:31 | 16:37 | 16:39 | 1314 |
| C1.7 | 15:55 | 15:58 | 16:00 | 1324 |
| C3.4 | 14:45 | 14:49 | 14:51 | 1324 |
| C2.4 | 12:31 | 12:34 | 12:37 | 1324 |
| C5.5 | 00:49 | 00:55 | 01:00 | 1324 |