Solar flares on September 21, 2014
The most powerful solar flare in 24 hours
C5.2 (normal) flare - September 21 at 7:53 AM
Solar activity index
Value as of the end of the day on September 21, 2014
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 20, 2014 to September 21, 2014
Time zone — UTC-04 (Indianapolis) — summer time
List of solar flares for September 21, 2014
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.2 | 07:31 | 07:53 | 08:32 | 2166 |
| C2.0 | 03:07 | 03:14 | 03:25 | 2172 |