Solar flares on April 18, 2012
The most powerful solar flare in 24 hours
C8.9 (normal) flare - April 18 at 2:39 PM
Solar activity index
Value as of the end of the day on April 18, 2012
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 17, 2012 to April 18, 2012
Time zone — UTC+02 (Berlin) — summer time
List of solar flares for April 18, 2012
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 |
|---|---|---|---|---|
| C1.3 | 20:12 | 20:15 | 20:20 | — |
| C5.3 | 18:54 | 19:06 | 19:18 | 1463 |
| C5.9 | 16:51 | 17:13 | 17:18 | 1463 |
| C8.9 | 14:32 | 14:39 | 14:50 | 1463 |
| C1.5 | 13:28 | 13:44 | 13:54 | 1463 |
| C1.1 | 07:26 | 07:30 | 07:33 | — |
| C3.1 | 04:59 | 05:07 | 05:10 | 1463 |