Solar flares on April 20, 2003
The most powerful solar flare in 24 hours
C4.4 (normal) flare - April 20 at 7:23 PM
Solar activity index
Value as of the end of the day on April 20, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 19, 2003 to April 20, 2003
Time zone — UTC+00
List of solar flares for April 20, 2003
The total number of solar flares of class C and higher — 1 flare
C class — 1 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.4 | 19:18 | 19:23 | 19:28 | 339 |