Solar flares — Sep 18, 2021
The strongest solar flare in the day
Flare of C2.6 level (normal) — in 08:27
Solar activity index
Value for Sep 18, 2021 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Sep 17, 2021 to Sep 18, 2021
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Sep 18, 2021
Total number of flares of class C and higher — 7 flares
C type — 2 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B1.9
|
23:48 | 23:48 | 00:06 | 2871 |
C2.6
|
07:47 | 08:27 | 08:33 | 2871 |
C1.6
|
07:48 | 08:15 | 23:48 | 2871 |
B1.6
|
05:02 | 05:14 | 05:24 | 2871 |
B1.7
|
01:03 | 01:11 | 01:19 | 2871 |
B2.0
|
00:37 | 00:46 | 00:54 | 2871 |
B1.4
|
00:22 | 00:30 | 00:37 | 2871 |