Solar flares on May 20, 2002
The most powerful solar flare in 24 hours
X2.1 (very strong) flare - May 20 at 5:27 PM
Solar activity index
Value as of the end of the day on May 20, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 19, 2002 to May 20, 2002
Time zone — UTC+02 (Berlin) — summer time
List of solar flares for May 20, 2002
The total number of solar flares of class C and higher — 9 flares
C class — 6 | M class — 2 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.0 | 23:16 | 23:20 | 23:24 | 0 |
| C3.0 | 22:17 | 22:24 | 22:37 | 9961 |
| C1.8 | 21:46 | 21:51 | 21:56 | 9961 |
| C4.1 | 20:15 | 20:20 | 20:25 | 9961 |
| X2.1 | 17:21 | 17:27 | 17:31 | 9961 |
| M5.0 | 12:49 | 12:53 | 12:56 | 9961 |
| M4.7 | 12:14 | 12:29 | 12:34 | 9961 |
| C3.9 | 09:29 | 10:05 | 10:14 | 9961 |
| C2.2 | 09:19 | 09:33 | 09:34 | 0 |