Solar flares on January 21, 2015
The most powerful solar flare in 24 hours
C9.9 (normal) flare - January 21 at 12:42 PM
Solar activity index
Value as of the end of the day on January 21, 2015
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 20, 2015 to January 21, 2015
Time zone — UTC+01 (Monaco)
List of solar flares for January 21, 2015
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.4 | 23:21 | 23:30 | 23:44 | 2268 |
| C1.2 | 22:35 | 22:41 | 22:47 | 2268 |
| C5.4 | 17:17 | 17:44 | 17:54 | 2268 |
| C5.0 | 16:24 | 16:34 | 16:50 | 2268 |
| C9.9 | 12:32 | 12:42 | 12:48 | 2268 |
| C4.3 | 11:35 | 11:49 | 12:03 | 2268 |
| C1.0 | 06:03 | 06:15 | 06:24 | 2268 |
| C2.9 | 23:57 | 00:18 | 00:36 | — |