Solar flares on September 17, 2011
The most powerful solar flare in 24 hours
C2.6 (normal) flare - September 17 at 5:21 AM
Solar activity index
Value as of the end of the day on September 17, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 16, 2011 to September 17, 2011
Time zone — UTC+05:30 (Ranchi)
List of solar flares for September 17, 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 |
|---|---|---|---|---|
| C1.1 | 16:17 | 16:20 | 16:22 | — |
| C1.4 | 13:35 | 13:38 | 13:40 | 1290 |
| C2.6 | 04:39 | 05:21 | 06:14 | 1289 |
| C1.4 | 03:39 | 03:43 | 04:15 | 1290 |