Solar flares on September 21, 2010
The most powerful solar flare in 24 hours
C2.1 (normal) flare - September 21 at 1:15 AM
Solar activity index
Value as of the end of the day on September 21, 2010
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 20, 2010 to September 21, 2010
Time zone — UTC+05:30 (Aligarh)
List of solar flares for September 21, 2010
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 |
|---|---|---|---|---|
| C1.4 | 13:08 | 13:23 | 13:39 | 1109 |
| C1.0 | 03:49 | 03:55 | 03:57 | 1109 |
| C1.2 | 02:29 | 02:33 | 02:35 | 1109 |
| C2.1 | 01:04 | 01:15 | 01:19 | 1109 |