Solar flares on October 18, 2010
The most powerful solar flare in 24 hours
C2.5 (normal) flare - October 18 at 4:43 PM
Solar activity index
Value as of the end of the day on October 18, 2010
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 17, 2010 to October 18, 2010
Time zone — UTC+00
List of solar flares for October 18, 2010
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 |
|---|---|---|---|---|
| C1.2 | 21:25 | 21:39 | 21:47 | — |
| C2.5 | 15:26 | 16:43 | 17:16 | 1112 |
| C1.2 | 11:25 | 11:40 | 11:52 | 1112 |