Solar flares on September 30, 2021
The most powerful solar flare in 24 hours
C2.8 (normal) flare - September 30 at 7:26 AM
Solar activity index
Value as of the end of the day on September 30, 2021
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 29, 2021 to September 30, 2021
Time zone — UTC+09:30 (Adelaide)
List of solar flares for September 30, 2021
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.2 | 22:13 | 22:19 | 22:25 | 2877 |
| C1.6 | 08:04 | 08:15 | 08:20 | 2877 |
| C1.4 | 07:40 | 07:43 | 07:47 | 2877 |
| C2.8 | 07:16 | 07:26 | 07:32 | 2877 |