Solar flares on April 17, 2011
The most powerful solar flare in 24 hours
C1.7 (normal) flare - April 17 at 1:25 AM
Solar activity index
Value as of the end of the day on April 17, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 16, 2011 to April 17, 2011
Time zone — UTC+02 (Rome) — summer time
List of solar flares for April 17, 2011
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.3 | 21:00 | 21:18 | 21:33 | — |
| C1.4 | 16:08 | 16:15 | 16:23 | 1185 |
| C1.7 | 01:16 | 01:25 | 01:30 | 1185 |