Solar flares on May 20, 2004
The most powerful solar flare in 24 hours
C3.7 (normal) flare - May 20 at 1:19 PM
Solar activity index
Value as of the end of the day on May 20, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 19, 2004 to May 20, 2004
Time zone — UTC-04 (Providence) — summer time
List of solar flares for May 20, 2004
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.7 | 13:14 | 13:19 | 13:23 | 618 |
| C1.1 | 00:40 | 01:04 | 01:21 | 618 |