Solar flares on September 29, 2011
The most powerful solar flare in 24 hours
C7.7 (normal) flare - September 29 at 8:00 PM
Solar activity index
Value as of the end of the day on September 29, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 28, 2011 to September 29, 2011
Time zone — UTC-08 (Anchorage) — summer time
List of solar flares for September 29, 2011
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.7 | 19:37 | 20:00 | 20:13 | 1305 |
| C1.0 | 18:46 | 18:52 | 18:58 | 1302 |
| C2.7 | 04:07 | 04:47 | 05:17 | 1302 |
| C1.3 | 02:19 | 02:23 | 02:25 | 1305 |