Solar flares on August 21, 2015
The most powerful solar flare in 24 hours
M1.4 (strong) flare - August 21 at 5:48 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-04 (Washington) — 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 — 4 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.0 | 20:23 | 20:26 | 20:29 | 2403 |
| C1.3 | 19:34 | 19:46 | 19:53 | 2403 |
| M1.1 | 15:10 | 16:34 | 16:50 | 2403 |
| C1.2 | 10:33 | 10:37 | 10:43 | 2403 |
| M1.4 | 05:34 | 05:48 | 06:07 | 2403 |
| C1.2 | 04:19 | 04:25 | 04:30 | 2403 |