Solar flares on September 17, 2005
The most powerful solar flare in 24 hours
M9.8 (strong) flare - September 17 at 9:05 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+03 (Kyiv)
List of solar flares for September 17, 2005
The total number of solar flares of class C and higher — 8 flares
C class — 7 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 17:58 | 18:04 | 18:06 | — |
| C2.5 | 13:33 | 13:36 | 13:39 | — |
| C1.5 | 12:34 | 12:39 | 12:48 | — |
| C1.2 | 12:17 | 12:20 | 12:23 | — |
| M9.8 | 08:58 | 09:05 | 09:15 | 808 |
| C3.3 | 07:32 | 07:49 | 08:08 | 808 |
| C2.0 | 05:07 | 05:12 | 05:18 | 808 |
| C6.2 | 02:33 | 02:39 | 02:42 | 808 |