Solar flares on September 17, 2005
The most powerful solar flare in 24 hours
M9.8 (strong) flare - September 17 at 6:05 AM
Solar activity index
Value as of the end of the day on September 17, 2005
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 16, 2005 to September 17, 2005
Time zone — UTC+00
List of solar flares for September 17, 2005
The total number of solar flares of class C and higher — 7 flares
C class — 6 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 14:58 | 15:04 | 15:06 | — |
| C2.5 | 10:33 | 10:36 | 10:39 | — |
| C1.5 | 09:34 | 09:39 | 09:48 | — |
| C1.2 | 09:17 | 09:20 | 09:23 | — |
| M9.8 | 05:58 | 06:05 | 06:15 | 808 |
| C3.3 | 04:32 | 04:49 | 05:08 | 808 |
| C2.0 | 02:07 | 02:12 | 02:18 | 808 |