Solar flares on October 20, 2015
The most powerful solar flare in 24 hours
C1.7 (normal) flare - October 20 at 8:19 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-04 (Barrie) — 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 |
|---|---|---|---|---|
| C1.6 | 22:00 | 22:09 | 22:14 | 2436 |
| C1.7 | 20:12 | 20:19 | 20:23 | 2436 |
| C1.1 | 09:56 | 09:59 | 10:01 | 2437 |
| C1.0 | 03:24 | 03:27 | 03:29 | 2436 |
| C1.0 | 00:58 | 01:01 | 01:03 | 2436 |
| C1.2 | 23:56 | 00:04 | 00:16 | 2437 |