Solar flares on October 18, 2011
The most powerful solar flare in 24 hours
C2.0 (normal) flare - October 18 at 7:43 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+01 (London) — summer time
List of solar flares for October 18, 2011
The total number of solar flares of class C and higher — 1 flare
C class — 1 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.0 | 07:39 | 07:43 | 07:45 | — |