Solar flares on May 20, 2013
The most powerful solar flare in 24 hours
M1.7 (strong) flare - May 20 at 8:25 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+03 (Kursk)
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 |
|---|---|---|---|---|
| C1.6 | 23:02 | 23:10 | 23:18 | 1753 |
| C1.3 | 22:14 | 22:18 | 22:29 | 1748 |
| C6.0 | 19:20 | 19:26 | 19:30 | 1748 |
| C9.6 | 17:59 | 18:06 | 18:10 | 1748 |
| C2.7 | 17:21 | 17:28 | 17:32 | 1748 |
| M1.7 | 08:16 | 08:25 | 09:03 | 1755 |
| C4.0 | 03:41 | 03:47 | 03:53 | 1748 |
| C4.7 | 00:11 | 00:21 | 00:26 | 1750 |