Solar flares — Apr 28, 2011
The strongest solar flare in the day
Flare of C2.4 level (normal) — in 11:58
Solar activity index
Value for Apr 28, 2011 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Apr 27, 2011 to Apr 28, 2011
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Apr 28, 2011
Total number of flares of class C and higher — 8 flares
C type — 3 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B8.2
|
21:06 | 21:12 | 21:18 | 1199 |
C1.1
|
12:39 | 12:47 | 12:51 | — |
C2.4
|
11:51 | 11:58 | 12:03 | 1199 |
B8.0
|
10:41 | 10:47 | 10:52 | 1196 |
B8.3
|
10:02 | 10:19 | 10:28 | 1199 |
B6.7
|
09:15 | 09:22 | 09:35 | 1202 |
B4.4
|
08:59 | 09:03 | 09:12 | 1202 |
C1.0
|
02:32 | 02:40 | 02:46 | 1196 |