Solar flares on January 13, 2003
The most powerful solar flare in 24 hours
C4.2 (normal) flare - January 13 at 4:15 PM
Solar activity index
Value as of the end of the day on January 13, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 12, 2003 to January 13, 2003
Time zone — UTC+00 (Lisbon)
List of solar flares for January 13, 2003
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.1 | 22:05 | 22:40 | 23:03 | — |
| C4.2 | 15:57 | 16:15 | 16:38 | 244 |
| C3.1 | 14:06 | 14:11 | 14:16 | 0 |
| C2.4 | 12:57 | 13:05 | 13:12 | — |
| C1.0 | 06:33 | 06:37 | 06:41 | — |
| C1.7 | 04:49 | 04:53 | 04:57 | 254 |
| C1.3 | 04:35 | 04:43 | 04:49 | 250 |