Solar flares — Sep 20, 2017
The strongest solar flare in the day
Flare of B8.4 level () — in 19:32
Solar activity index
Value for Sep 20, 2017 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Sep 19, 2017 to Sep 20, 2017
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Sep 20, 2017
Total number of flares of class C and higher — 9 flares
C type — 0 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B1.0
|
21:58 | 22:01 | 22:04 | 2680 |
B1.0
|
20:00 | 20:03 | 20:09 | 2680 |
B8.4
|
19:26 | 19:32 | 19:37 | 2680 |
B5.4
|
12:31 | 12:43 | 12:52 | 2681 |
B3.2
|
09:42 | 09:50 | 09:55 | 2681 |
B1.5
|
08:36 | 08:43 | 08:48 | — |
B1.4
|
05:25 | 05:31 | 05:40 | — |
B1.7
|
02:51 | 02:57 | 03:21 | — |
B1.2
|
01:30 | 01:37 | 01:43 | — |