Solar flares on October 28, 2013
The most powerful solar flare in 24 hours
M4.4 (strong) flare - October 28 at 9:15 AM
Solar activity index
Value as of the end of the day on October 28, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 27, 2013 to October 28, 2013
Time zone — UTC-06 (Denver) — summer time
List of solar flares for October 28, 2013
The total number of solar flares of class C and higher — 11 flares
C class — 6 | M class — 5 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.7 | 22:18 | 22:35 | 22:40 | 1875 |
| C2.9 | 21:28 | 21:31 | 21:43 | 1875 |
| C3.3 | 21:03 | 21:10 | 21:19 | 1875 |
| C2.1 | 20:17 | 20:27 | 20:31 | 1884 |
| C1.7 | 18:13 | 18:16 | 18:21 | 1875 |
| M1.5 | 14:48 | 14:57 | 15:02 | 1875 |
| M4.4 | 09:07 | 09:15 | 09:21 | 1882 |
| M2.7 | 08:46 | 09:01 | 09:04 | 1882 |
| M2.8 | 08:00 | 08:05 | 08:12 | 1875 |
| M1.4 | 05:32 | 05:53 | 06:39 | 1877 |
| C5.2 | 03:15 | 03:22 | 03:26 | 1875 |