Solar flares on September 20, 2015
The most powerful solar flare in 24 hours
M2.1 (strong) flare - September 20 at 11:03 AM
Solar activity index
Value as of the end of the day on September 20, 2015
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 19, 2015 to September 20, 2015
Time zone — UTC-07 (Kelowna) — summer time
List of solar flares for September 20, 2015
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 |
|---|---|---|---|---|
| C8.8 | 22:11 | 22:18 | 22:22 | 2420 |
| C1.5 | 20:54 | 21:00 | 21:05 | 2420 |
| C4.2 | 18:57 | 19:04 | 19:08 | 2420 |
| C2.8 | 17:10 | 17:21 | 17:29 | 2420 |
| M2.1 | 10:32 | 11:03 | 11:29 | 2415 |
| C1.4 | 07:09 | 07:14 | 07:24 | 2415 |
| C2.6 | 02:32 | 02:34 | 02:36 | 2415 |