Solar flares on October 20, 2023
The most powerful solar flare in 24 hours
C2.8 (normal) flare - October 20 at 8:30 PM
Solar activity index
Value as of the end of the day on October 20, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 19, 2023 to October 20, 2023
Time zone — UTC-04 (Concord) — summer time
List of solar flares for October 20, 2023
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.8 | 20:00 | 20:30 | 20:59 | 3467 |
| C2.3 | 19:15 | 19:30 | 19:39 | 3467 |
| C1.7 | 07:00 | 07:14 | 07:37 | — |
| C1.3 | 05:31 | 05:53 | 06:26 | — |
| C2.2 | 00:20 | 01:00 | 01:24 | — |