Solar flares on November 18, 2003
The most powerful solar flare in 24 hours
M4.5 (strong) flare - November 18 at 10:11 AM
Solar activity index
Value as of the end of the day on November 18, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from November 17, 2003 to November 18, 2003
Time zone — UTC+00 (London)
List of solar flares for November 18, 2003
The total number of solar flares of class C and higher — 8 flares
C class — 4 | M class — 4 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C6.1 | 22:15 | 22:22 | 22:37 | — |
| C2.2 | 21:44 | 21:49 | 21:52 | 507 |
| M4.5 | 09:23 | 10:11 | 11:01 | — |
| M3.9 | 08:12 | 08:31 | 08:59 | 501 |
| M3.2 | 07:23 | 07:52 | 08:06 | 501 |
| C3.8 | 05:25 | 05:30 | 05:35 | 501 |
| M1.8 | 01:34 | 01:39 | 01:42 | 501 |
| C4.1 | 00:53 | 01:02 | 01:10 | — |