Solar flares on January 20, 2005
The most powerful solar flare in 24 hours
X7.1 (very strong) flare - January 20 at 10:01 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+03 (Pskov)
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 |
|---|---|---|---|---|
| C3.6 | 21:13 | 21:16 | 21:19 | 720 |
| C8.0 | 19:08 | 19:14 | 19:19 | 720 |
| X7.1 | 09:36 | 10:01 | 10:26 | 720 |
| C4.8 | 06:21 | 06:30 | 06:36 | 720 |
| C1.6 | 03:37 | 03:47 | 03:56 | 720 |
| C5.3 | 02:18 | 02:24 | 02:29 | 723 |