Solar flares on January 20, 2003
The most powerful solar flare in 24 hours
C4.3 (normal) flare - January 20 at 8:10 AM
Solar activity index
Value as of the end of the day on January 20, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 19, 2003 to January 20, 2003
Time zone — UTC+01 (Rome)
List of solar flares for January 20, 2003
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 22:43 | 22:46 | 22:49 | 267 |
| C1.7 | 19:30 | 20:21 | 20:33 | — |
| C4.3 | 08:04 | 08:10 | 08:16 | 260 |