Solar flares on September 27, 2011
The most powerful solar flare in 24 hours
C6.4 (normal) flare - September 27 at 8:58 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+00 (Reykjavik)
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 |
|---|---|---|---|---|
| C1.7 | 22:45 | 22:50 | 22:54 | — |
| C6.4 | 20:44 | 20:58 | 21:11 | 1302 |
| C1.1 | 18:05 | 18:10 | 18:22 | 1302 |
| C1.3 | 11:42 | 11:47 | 11:51 | — |
| C1.8 | 10:49 | 10:54 | 10:57 | — |
| C2.4 | 08:05 | 08:13 | 08:21 | 1302 |
| C3.3 | 07:40 | 07:47 | 07:54 | 1302 |
| C1.1 | 01:18 | 01:21 | 01:24 | — |