Solar flares on January 18, 2005
The most powerful solar flare in 24 hours
M4.6 (strong) flare - January 18 at 3:51 PM
Solar activity index
Value as of the end of the day on January 18, 2005
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 17, 2005 to January 18, 2005
Time zone — UTC+00
List of solar flares for January 18, 2005
The total number of solar flares of class C and higher — 9 flares
C class — 7 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.2 | 18:56 | 19:01 | 19:09 | 720 |
| C2.1 | 18:43 | 18:48 | 18:52 | 720 |
| M4.6 | 15:38 | 15:51 | 15:59 | 720 |
| M1.6 | 11:23 | 11:32 | 11:59 | 720 |
| C2.4 | 07:47 | 08:00 | 08:18 | 720 |
| C6.1 | 05:52 | 06:15 | 06:24 | 720 |
| C2.0 | 05:41 | 05:46 | 05:49 | 720 |
| C3.2 | 02:06 | 02:12 | 02:17 | 720 |
| C6.0 | 00:37 | 00:44 | 00:51 | 720 |