Solar flares — Sep 21, 2023
The strongest solar flare in the day
Flare of M8.7 level (strong) — in 12:54
Solar activity index
Value for Sep 21, 2023 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Sep 20, 2023 to Sep 21, 2023
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Sep 21, 2023
Total number of flares of class C and higher — 7 flares
C type — 6 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C3.2
|
15:59 | 16:07 | 16:15 | 3443 |
|
C2.4
|
14:43 | 14:53 | 15:05 | 3438 |
|
M8.7
|
12:42 | 12:54 | 13:02 | 3435 |
|
C2.5
|
10:09 | 10:20 | 10:26 | 3435 |
|
C2.1
|
09:38 | 09:46 | 09:52 | 3443 |
|
C1.6
|
05:51 | 05:57 | 06:05 | 3438 |
|
C2.2
|
01:32 | 01:43 | 02:06 | 3442 |