Solar flares — May 21, 2021
The strongest solar flare in the day
Flare of C4.8 level (normal) — in 19:28
Solar activity index
Value for May 21, 2021 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from May 20, 2021 to May 21, 2021
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for May 21, 2021
Total number of flares of class C and higher — 18 flares
C type — 1 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
B1.1
|
22:41 | 22:45 | 22:49 | 2824 |
|
B1.5
|
22:11 | 22:15 | 22:19 | 2824 |
|
B1.3
|
21:28 | 21:31 | 21:41 | — |
|
B1.7
|
19:45 | 19:51 | 19:57 | 2824 |
|
C4.8
|
19:15 | 19:28 | 19:32 | 2824 |
|
B3.6
|
16:45 | 16:57 | 17:01 | — |
|
B3.1
|
13:46 | 13:55 | 13:59 | 2824 |
|
B1.7
|
12:13 | 12:19 | 12:23 | 2824 |
|
B1.2
|
11:12 | 11:22 | 11:43 | — |
|
B3.3
|
10:09 | 10:13 | 10:17 | 2824 |
|
B1.9
|
09:34 | 09:42 | 09:47 | 2824 |
|
B1.0
|
09:10 | 09:16 | 09:34 | 2824 |
|
B3.8
|
08:41 | 08:46 | 08:50 | — |
|
B1.6
|
08:23 | 08:30 | 08:34 | 2824 |
|
B1.4
|
06:57 | 07:03 | 07:07 | 2824 |
|
B3.0
|
05:11 | 05:16 | 05:21 | 2824 |
|
B2.0
|
03:33 | 03:38 | 03:42 | — |
|
B1.5
|
01:09 | 01:16 | 01:20 | 2824 |