Solar flares on January 21, 2012
The most powerful solar flare in 24 hours
C7.1 (normal) flare - January 21 at 9:57 PM
Solar activity index
Value as of the end of the day on January 21, 2012
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 20, 2012 to January 21, 2012
Time zone — UTC-05 (Atlanta)
List of solar flares for January 21, 2012
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.1 | 21:32 | 21:57 | 22:06 | — |
| C1.3 | 15:44 | 16:20 | 16:43 | 1402 |
| C2.4 | 08:35 | 08:42 | 08:47 | — |