Solar flares — Oct 21, 2023
The strongest solar flare in the day
Flare of C2.8 level (normal) — in 00:30
Solar activity index
Value for Oct 21, 2023 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Oct 20, 2023 to Oct 21, 2023
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Oct 21, 2023
Total number of flares of class C and higher — 3 flares
C type — 2 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
B7.0
|
18:07 | 18:17 | 18:25 | 3464 |
|
C1.5
|
12:02 | 12:10 | 12:17 | 3464 |
|
C2.8
|
00:00 | 00:30 | 00:59 | 3467 |