Solar flares on October 20, 2026
The most powerful solar flare in 24 hours
C3.5 (normal) flare - October 20 at 5:45 AM
Solar activity index
Value as of the end of the day on October 20, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 19, 2026 to October 20, 2026
Time zone — UTC+03 (Kaluga)
List of solar flares for October 20, 2026
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 21:26 | 21:36 | 21:43 | 4551 |
| C2.8 | 16:46 | 16:56 | 17:02 | 4557 |
| C2.4 | 10:43 | 10:52 | 10:56 | 4557 |
| C2.0 | 09:24 | 09:36 | 09:42 | 4557 |
| C2.6 | 05:58 | 06:03 | 06:08 | 4557 |
| C3.5 | 05:36 | 05:45 | 05:50 | 4557 |
| C1.8 | 05:13 | 05:19 | 05:35 | 4557 |
| C1.0 | 03:51 | 03:58 | 04:06 | 4557 |
| C1.2 | 02:23 | 02:29 | 02:33 | 4557 |