Solar flares on September 18, 2000
The most powerful solar flare in 24 hours
C8.6 (normal) flare - September 18 at 11:52 PM
Solar activity index
Value as of the end of the day on September 18, 2000
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 17, 2000 to September 18, 2000
Time zone — UTC+00
List of solar flares for September 18, 2000
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C8.6 | 23:47 | 23:52 | 23:56 | 9166 |
| C4.3 | 22:17 | 22:23 | 22:28 | 9166 |
| C5.7 | 21:05 | 21:14 | 21:29 | 9166 |
| C3.3 | 12:19 | 12:31 | 12:42 | 9167 |
| C1.9 | 07:59 | 08:06 | 08:20 | — |
| C3.2 | 05:18 | 05:29 | 05:56 | 9166 |
| C3.2 | 03:33 | 03:36 | 03:38 | 9165 |
| C2.3 | 02:44 | 02:49 | 02:51 | 9167 |
| C3.0 | 01:13 | 01:33 | 01:37 | — |