Solar flares on May 18, 2013
The most powerful solar flare in 24 hours
C2.9 (normal) flare - May 18 at 4:18 PM
Solar activity index
Value as of the end of the day on May 18, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 17, 2013 to May 18, 2013
Time zone — UTC-05 (Pierre) — summer time
List of solar flares for May 18, 2013
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 |
|---|---|---|---|---|
| C2.9 | 15:16 | 16:18 | 16:55 | — |
| C1.1 | 13:12 | 13:22 | 13:25 | 1748 |
| C1.3 | 01:32 | 01:56 | 02:09 | 1752 |
| C1.2 | 00:05 | 00:18 | 00:31 | 1743 |