Solar flares on January 21, 2015
The most powerful solar flare in 24 hours
M1.4 (strong) flare - January 21 at 9:52 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-07 (Fort Smith)
List of solar flares for January 21, 2015
The total number of solar flares of class C and higher — 10 flares
C class — 9 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.4 | 21:43 | 21:52 | 22:02 | 2268 |
| C1.1 | 21:00 | 21:05 | 21:16 | 2268 |
| C1.2 | 19:47 | 19:52 | 19:59 | 2268 |
| C1.7 | 19:13 | 19:20 | 19:26 | 2268 |
| C5.4 | 15:21 | 15:30 | 15:44 | 2268 |
| C1.2 | 14:35 | 14:41 | 14:47 | 2268 |
| C5.4 | 09:17 | 09:44 | 09:54 | 2268 |
| C5.0 | 08:24 | 08:34 | 08:50 | 2268 |
| C9.9 | 04:32 | 04:42 | 04:48 | 2268 |
| C4.3 | 03:35 | 03:49 | 04:03 | 2268 |