Solar flares on October 7, 2021
The most powerful solar flare in 24 hours
C5.5 (normal) flare - October 7 at 12:16 AM
Solar activity index
Value as of the end of the day on October 7, 2021
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 6, 2021 to October 7, 2021
Time zone — UTC-02:30 (Saint john's) — summer time
List of solar flares for October 7, 2021
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 19:43 | 20:01 | 20:13 | — |
| C5.5 | 00:05 | 00:16 | 00:24 | 2882 |