Solar flares on October 20, 2015
The most powerful solar flare in 24 hours
C3.9 (normal) flare - October 20 at 3:57 AM
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+10:30 (Adelaide) — summer time
List of solar flares for October 20, 2015
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 17:54 | 17:57 | 17:59 | 2436 |
| C1.0 | 15:28 | 15:31 | 15:33 | 2436 |
| C1.2 | 14:26 | 14:34 | 14:46 | 2437 |
| C1.8 | 05:07 | 05:13 | 05:15 | 2434 |
| C1.3 | 04:11 | 04:18 | 04:23 | 2436 |
| C3.9 | 03:53 | 03:57 | 03:59 | 2436 |
| C1.9 | 00:06 | 00:13 | 00:29 | 2434 |