Solar flares on January 20, 2005
The most powerful solar flare in 24 hours
X7.1 (very strong) flare - January 20 at 8:01 AM
Solar activity index
Value as of the end of the day on January 20, 2005
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 19, 2005 to January 20, 2005
Time zone — UTC+01 (Valletta)
List of solar flares for January 20, 2005
The total number of solar flares of class C and higher — 7 flares
C class — 6 | M class — 0 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.5 | 22:47 | 22:53 | 22:56 | 720 |
| C3.6 | 19:13 | 19:16 | 19:19 | 720 |
| C8.0 | 17:08 | 17:14 | 17:19 | 720 |
| X7.1 | 07:36 | 08:01 | 08:26 | 720 |
| C4.8 | 04:21 | 04:30 | 04:36 | 720 |
| C1.6 | 01:37 | 01:47 | 01:56 | 720 |
| C5.3 | 00:18 | 00:24 | 00:29 | 723 |