Solar flares on October 20, 2011
The most powerful solar flare in 24 hours
M1.6 (strong) flare - October 20 at 8:55 AM
Solar activity index
Value as of the end of the day on October 20, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 19, 2011 to October 20, 2011
Time zone — UTC+05:30 (Meerut)
List of solar flares for October 20, 2011
The total number of solar flares of class C and higher — 6 flares
C class — 5 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.4 | 21:03 | 21:09 | 21:15 | 1324 |
| M1.6 | 08:40 | 08:55 | 09:14 | — |
| C1.5 | 07:30 | 07:33 | 07:35 | — |
| C3.5 | 02:01 | 02:07 | 02:09 | 1314 |
| C1.7 | 01:25 | 01:28 | 01:30 | 1324 |
| C3.4 | 00:15 | 00:19 | 00:21 | 1324 |