Solar flares on November 4, 2011
The most powerful solar flare in 24 hours
M2.1 (strong) flare - November 4 at 2:36 AM
Solar activity index
Value as of the end of the day on November 4, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from November 3, 2011 to November 4, 2011
Time zone — UTC+03 (Kaluga)
List of solar flares for November 4, 2011
The total number of solar flares of class C and higher — 9 flares
C class — 7 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.0 | 23:31 | 23:40 | 23:46 | 1339 |
| C2.9 | 22:25 | 22:33 | 22:47 | 1339 |
| C1.8 | 13:50 | 13:55 | 14:01 | — |
| C8.6 | 06:22 | 06:53 | 07:16 | — |
| C5.4 | 03:26 | 04:01 | 04:43 | — |
| C3.8 | 03:01 | 03:11 | 03:16 | 1339 |
| M2.1 | 02:28 | 02:36 | 02:44 | — |
| C9.2 | 01:56 | 02:13 | 02:24 | 1339 |
| C5.4 | 01:12 | 01:18 | 01:27 | 1339 |