Solar flares — Aug 21, 2017
The strongest solar flare in the day
Flare of C5.9 level (normal) — in 04:16
Solar activity index
Value for Aug 21, 2017 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Aug 20, 2017 to Aug 21, 2017
Time zone — UTC+01 (London) - summer time
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Aug 21, 2017
Total number of flares of class C and higher — 4 flares
C type — 4 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C1.5
|
22:47 | 23:38 | 23:58 | 2671 |
|
C1.5
|
21:12 | 21:22 | 21:26 | 2671 |
|
C3.0
|
18:39 | 18:57 | 19:01 | — |
|
C5.9
|
04:05 | 04:16 | 04:30 | 2672 |