Solar flares on February 4, 2005
The most powerful solar flare in 24 hours
C7.1 (normal) flare - February 4 at 11:57 PM
Solar activity index
Value as of the end of the day on February 4, 2005
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 3, 2005 to February 4, 2005
Time zone — UTC+00
List of solar flares for February 4, 2005
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.1 | 23:45 | 23:57 | 00:08 | 732 |
| C1.3 | 23:03 | 23:09 | 23:36 | 732 |
| C1.2 | 22:29 | 22:36 | 22:39 | — |
| C1.3 | 15:02 | 15:09 | 15:16 | — |