Solar flares on January 20, 2005
The most powerful solar flare in 24 hours
X7.1 (very strong) flare - January 20 at 7:01 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+00
List of solar flares for January 20, 2005
The total number of solar flares of class C and higher — 6 flares
C class — 5 | M class — 0 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.5 | 21:47 | 21:53 | 21:56 | 720 |
| C3.6 | 18:13 | 18:16 | 18:19 | 720 |
| C8.0 | 16:08 | 16:14 | 16:19 | 720 |
| X7.1 | 06:36 | 07:01 | 07:26 | 720 |
| C4.8 | 03:21 | 03:30 | 03:36 | 720 |
| C1.6 | 00:37 | 00:47 | 00:56 | 720 |