Solar flares on December 19, 2021
The most powerful solar flare in 24 hours
C4.4 (normal) flare - December 19 at 10:21 PM
Solar activity index
Value as of the end of the day on December 19, 2021
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 18, 2021 to December 19, 2021
Time zone — UTC-05 (Indianapolis)
List of solar flares for December 19, 2021
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 23:29 | 23:37 | 23:44 | 2908 |
| C4.4 | 22:08 | 22:21 | 22:27 | 2909 |
| C1.6 | 19:17 | 19:34 | 19:53 | 2908 |
| C3.7 | 15:59 | 16:12 | 16:27 | 2907 |
| C1.8 | 14:04 | 14:16 | 14:28 | 2907 |
| C1.8 | 11:15 | 11:23 | 11:27 | 2907 |
| C1.5 | 06:51 | 06:59 | 07:03 | 2907 |