Solar flares on October 20, 2015
The most powerful solar flare in 24 hours
C6.3 (normal) flare - October 20 at 10:34 PM
Solar activity index
Value as of the end of the day on October 20, 2015
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 19, 2015 to October 20, 2015
Time zone — UTC-06 (Calgary) — summer time
List of solar flares for October 20, 2015
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 |
|---|---|---|---|---|
| C2.7 | 23:31 | 23:37 | 23:43 | 2436 |
| C6.3 | 22:29 | 22:34 | 22:36 | 2436 |
| C1.6 | 20:00 | 20:09 | 20:14 | 2436 |
| C1.7 | 18:12 | 18:19 | 18:23 | 2436 |
| C1.1 | 07:56 | 07:59 | 08:01 | 2437 |
| C1.0 | 01:24 | 01:27 | 01:29 | 2436 |