Solar flares on October 18, 2011
The most powerful solar flare in 24 hours
C2.0 (normal) flare - October 18 at 3:43 AM
Solar activity index
Value as of the end of the day on October 18, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 17, 2011 to October 18, 2011
Time zone — UTC-03 (Moncton) — summer time
List of solar flares for October 18, 2011
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.1 | 22:33 | 22:36 | 22:40 | — |
| C2.0 | 03:39 | 03:43 | 03:45 | — |