Solar flares — May 18, 2021
The strongest solar flare in the day
Flare of C1.1 level (normal) — in 02:09
Solar activity index
Value for May 18, 2021 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from May 17, 2021 to May 18, 2021
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for May 18, 2021
Total number of flares of class C and higher — 6 flares
C type — 1 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B2.1
|
21:27 | 21:35 | 21:45 | 2824 |
B1.0
|
15:50 | 15:58 | 16:12 | 2824 |
B1.5
|
13:26 | 13:30 | 13:34 | 2824 |
B1.2
|
13:17 | 13:22 | 13:26 | 2824 |
B2.3
|
08:15 | 08:23 | 08:27 | 2824 |
C1.1
|
01:58 | 02:09 | 02:13 | 2824 |