Solar flares on September 13, 2004
The most powerful solar flare in 24 hours
C1.4 (normal) flare - September 13 at 8:11 PM
Solar activity index
Value as of the end of the day on September 13, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 12, 2004 to September 13, 2004
Time zone — UTC+00
List of solar flares for September 13, 2004
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 |
|---|---|---|---|---|
| C1.4 | 20:07 | 20:11 | 20:14 | 672 |
| C1.4 | 13:34 | 13:39 | 13:42 | 672 |
| C1.0 | 00:01 | 00:08 | 00:13 | 669 |