Solar flares — Oct 31, 2021
The strongest solar flare in the day
Flare of C3.2 level (normal) — in 20:00
Solar activity index
Value for Oct 31, 2021 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Oct 30, 2021 to Oct 31, 2021
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Oct 31, 2021
Total number of flares of class C and higher — 6 flares
C type — 4 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B8.0
|
21:30 | 21:39 | 21:47 | 2887 |
C3.2
|
19:51 | 20:00 | 20:04 | 2887 |
C1.2
|
18:16 | 18:27 | 18:32 | 2887 |
C2.9
|
06:53 | 07:06 | 07:12 | 2891 |
C1.7
|
03:20 | 03:24 | 03:30 | 2891 |
B8.5
|
01:17 | 01:21 | 01:28 | 2887 |