Solar flares — Jul 20, 2021
The strongest solar flare in the day
Flare of C1.0 level (normal) — in 23:27
Solar activity index
Value for Jul 20, 2021 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Jul 19, 2021 to Jul 20, 2021
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Jul 20, 2021
Total number of flares of class C and higher — 7 flares
C type — 1 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
C1.0
|
23:19 | 23:27 | 23:37 | — |
B5.5
|
20:12 | 20:24 | 20:31 | 2846 |
B5.4
|
16:18 | 16:33 | 16:46 | — |
B5.0
|
15:51 | 15:56 | 16:00 | — |
B5.2
|
15:36 | 15:46 | 15:51 | — |
B5.0
|
13:45 | 13:51 | 13:58 | — |
B4.7
|
13:30 | 13:38 | 13:45 | — |