Solar flares on September 27, 2011
The most powerful solar flare in 24 hours
C6.4 (normal) flare - September 27 at 4:58 PM
Solar activity index
Value as of the end of the day on September 27, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 26, 2011 to September 27, 2011
Time zone — UTC-04 (Richmond) — summer time
List of solar flares for September 27, 2011
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.0 | 22:36 | 22:44 | 22:50 | 1302 |
| C1.7 | 18:45 | 18:50 | 18:54 | — |
| C6.4 | 16:44 | 16:58 | 17:11 | 1302 |
| C1.1 | 14:05 | 14:10 | 14:22 | 1302 |
| C1.3 | 07:42 | 07:47 | 07:51 | — |
| C1.8 | 06:49 | 06:54 | 06:57 | — |
| C2.4 | 04:05 | 04:13 | 04:21 | 1302 |
| C3.3 | 03:40 | 03:47 | 03:54 | 1302 |