Solar flares — Apr 20, 2011
The strongest solar flare in the day
Flare of C4.0 level (normal) — in 19:39
Solar activity index
Value for Apr 20, 2011 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Apr 19, 2011 to Apr 20, 2011
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Apr 20, 2011
Total number of flares of class C and higher — 6 flares
C type — 3 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
B8.9
|
23:02 | 23:16 | 23:21 | 1195 |
|
C4.0
|
19:30 | 19:39 | 19:49 | 1195 |
|
C1.5
|
17:38 | 18:36 | 19:06 | — |
|
B8.5
|
13:07 | 13:11 | 13:13 | 1195 |
|
B6.7
|
09:24 | 09:28 | 09:32 | 1193 |
|
C1.0
|
03:46 | 04:31 | 04:49 | 1195 |