Solar flares on May 20, 2013
The most powerful solar flare in 24 hours
M1.7 (strong) flare - May 20 at 1:25 AM
Solar activity index
Value as of the end of the day on May 20, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 19, 2013 to May 20, 2013
Time zone — UTC-04 (Columbia) — summer time
List of solar flares for May 20, 2013
The total number of solar flares of class C and higher — 8 flares
C class — 7 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 20:06 | 20:12 | 20:22 | 1751 |
| C1.3 | 18:27 | 18:30 | 18:33 | 1748 |
| C1.6 | 16:02 | 16:10 | 16:18 | 1753 |
| C1.3 | 15:14 | 15:18 | 15:29 | 1748 |
| C6.0 | 12:20 | 12:26 | 12:30 | 1748 |
| C9.6 | 10:59 | 11:06 | 11:10 | 1748 |
| C2.7 | 10:21 | 10:28 | 10:32 | 1748 |
| M1.7 | 01:16 | 01:25 | 02:03 | 1755 |