Solar flares — Sep 18, 2023
The strongest solar flare in the day
Flare of C3.8 level (normal) — in 21:35
Solar activity index
Value for Sep 18, 2023 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Sep 17, 2023 to Sep 18, 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 18, 2023
Total number of flares of class C and higher — 13 flares
C type — 13 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
C3.3
|
22:59 | 23:06 | 23:13 | 3436 |
C3.8
|
21:22 | 21:35 | 21:50 | 3436 |
C2.4
|
20:35 | 20:46 | 20:54 | 3436 |
C1.9
|
19:27 | 19:32 | 19:36 | 3436 |
C1.8
|
19:10 | 19:20 | 19:27 | 3436 |
C2.0
|
18:35 | 18:43 | 18:53 | 3436 |
C1.8
|
16:42 | 16:54 | 17:10 | 3436 |
C2.3
|
15:44 | 15:52 | 16:01 | 3435 |
C1.5
|
14:20 | 14:38 | 14:59 | — |
C1.4
|
13:51 | 13:59 | 14:21 | 3429 |
C2.6
|
11:31 | 11:41 | 11:49 | 3435 |
C1.6
|
10:27 | 10:35 | 10:43 | 3425 |
C1.5
|
01:56 | 02:04 | 02:09 | 3430 |