Solar flares on October 17, 2011
The most powerful solar flare in 24 hours
C2.1 (normal) flare - October 17 at 1:58 PM
Solar activity index
Value as of the end of the day on October 17, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 16, 2011 to October 17, 2011
Time zone — UTC+05:30 (Ranchi)
List of solar flares for October 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 |
|---|---|---|---|---|
| C1.9 | 23:35 | 23:39 | 23:43 | 1324 |
| C1.8 | 14:59 | 15:02 | 15:04 | — |
| C2.1 | 13:54 | 13:58 | 14:00 | — |
| C1.6 | 11:10 | 12:51 | 13:33 | — |