Solar flares on September 30, 2011
The most powerful solar flare in 24 hours
M1.0 (strong) flare - September 30 at 10:06 PM
Solar activity index
Value as of the end of the day on September 30, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 29, 2011 to September 30, 2011
Time zone — UTC+03 (Riga)
List of solar flares for September 30, 2011
The total number of solar flares of class C and higher — 5 flares
C class — 4 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.1 | 23:37 | 23:42 | 23:48 | 1302 |
| M1.0 | 21:55 | 22:06 | 22:15 | 1305 |
| C3.4 | 21:42 | 21:47 | 21:53 | 1307 |
| C7.7 | 06:37 | 07:00 | 07:13 | 1305 |
| C1.0 | 05:46 | 05:52 | 05:58 | 1302 |