Solar flares on February 18, 2005
The most powerful solar flare in 24 hours
C2.0 (normal) flare - February 18 at 1:22 PM
Solar activity index
Value as of the end of the day on February 18, 2005
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 17, 2005 to February 18, 2005
Time zone — UTC+00
List of solar flares for February 18, 2005
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 |
|---|---|---|---|---|
| C1.4 | 15:05 | 15:45 | 15:58 | 732 |
| C2.0 | 12:52 | 13:22 | 13:28 | 732 |
| C1.2 | 04:33 | 04:37 | 04:39 | 735 |
| C1.4 | 01:17 | 01:21 | 01:24 | 732 |
| C1.0 | 01:00 | 01:05 | 01:10 | 732 |