Solar flares on October 23, 2004
The most powerful solar flare in 24 hours
C9.9 (normal) flare - October 23 at 4:54 PM
Solar activity index
Value as of the end of the day on October 23, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 22, 2004 to October 23, 2004
Time zone — UTC+00
List of solar flares for October 23, 2004
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C8.0 | 19:16 | 19:22 | 19:24 | 687 |
| C9.9 | 16:22 | 16:54 | 17:08 | 687 |
| C1.3 | 08:08 | 08:12 | 08:17 | 682 |
| C3.2 | 07:20 | 07:24 | 07:27 | 682 |
| C1.8 | 03:57 | 04:00 | 04:03 | — |