Solar flares — Sep 21, 2023
The strongest solar flare in the day
Flare of M8.7 level (strong) — in 13:54
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+01 (London) - summer time
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 — 8 flares
C type — 7 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C3.2
|
16:59 | 17:07 | 17:15 | 3443 |
|
C2.4
|
15:43 | 15:53 | 16:05 | 3438 |
|
M8.7
|
13:42 | 13:54 | 14:02 | 3435 |
|
C2.5
|
11:09 | 11:20 | 11:26 | 3435 |
|
C2.1
|
10:38 | 10:46 | 10:52 | 3443 |
|
C1.6
|
06:51 | 06:57 | 07:05 | 3438 |
|
C2.2
|
02:32 | 02:43 | 03:06 | 3442 |
|
C2.3
|
00:17 | 00:21 | 00:25 | 3438 |