Solar flares on September 18, 2005
The most powerful solar flare in 24 hours
C3.7 (normal) flare - September 18 at 7:33 AM
Solar activity index
Value as of the end of the day on September 18, 2005
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 17, 2005 to September 18, 2005
Time zone — UTC+03 (Kyiv)
List of solar flares for September 18, 2005
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 |
|---|---|---|---|---|
| C1.1 | 15:07 | 15:14 | 15:17 | — |
| C1.8 | 07:54 | 08:03 | 08:29 | — |
| C3.7 | 07:24 | 07:33 | 07:38 | — |