Solar flares on September 20, 2010
The most powerful solar flare in 24 hours
C2.1 (normal) flare - September 20 at 8:45 PM
Solar activity index
Value as of the end of the day on September 20, 2010
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 19, 2010 to September 20, 2010
Time zone — UTC+01 (London) — summer time
List of solar flares for September 20, 2010
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 23:19 | 23:25 | 23:27 | 1109 |
| C1.2 | 21:59 | 22:03 | 22:05 | 1109 |
| C2.1 | 20:34 | 20:45 | 20:49 | 1109 |