Solar flares on August 21, 2015
The most powerful solar flare in 24 hours
M1.4 (strong) flare - August 21 at 11:48 AM
Solar activity index
Value as of the end of the day on August 21, 2015
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 20, 2015 to August 21, 2015
Time zone — UTC+02 (Zagreb) — summer time
List of solar flares for August 21, 2015
The total number of solar flares of class C and higher — 6 flares
C class — 3 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.1 | 21:10 | 22:34 | 22:50 | 2403 |
| C1.2 | 16:33 | 16:37 | 16:43 | 2403 |
| M1.4 | 11:34 | 11:48 | 12:07 | 2403 |
| C1.2 | 10:19 | 10:25 | 10:30 | 2403 |
| M1.2 | 03:56 | 04:18 | 04:37 | 2403 |
| C1.1 | 01:30 | 01:41 | 01:44 | 2403 |