Solar flares on December 18, 2011
The most powerful solar flare in 24 hours
C3.2 (normal) flare - December 18 at 4:25 AM
Solar activity index
Value as of the end of the day on December 18, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 17, 2011 to December 18, 2011
Time zone — UTC+05:30 (Ranchi)
List of solar flares for December 18, 2011
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.8 | 10:29 | 10:34 | 10:37 | 1376 |
| C1.9 | 07:30 | 07:35 | 07:38 | 1376 |
| C1.2 | 05:07 | 05:14 | 05:19 | 1381 |
| C3.2 | 04:17 | 04:25 | 04:28 | 1376 |