Solar flares on October 27, 2013
The most powerful solar flare in 24 hours
X1.0 (very strong) flare - October 27 at 10:03 PM
Solar activity index
Value as of the end of the day on October 27, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 26, 2013 to October 27, 2013
Time zone — UTC-04 (Granby) — summer time
List of solar flares for October 27, 2013
The total number of solar flares of class C and higher — 8 flares
C class — 6 | M class — 1 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| X1.0 | 21:41 | 22:03 | 22:12 | 1875 |
| C3.5 | 21:25 | 21:30 | 21:36 | 1875 |
| C9.1 | 13:48 | 13:53 | 14:04 | 1875 |
| C5.7 | 13:24 | 13:29 | 13:34 | 1873 |
| C4.0 | 09:39 | 09:47 | 10:06 | 1877 |
| M3.5 | 08:36 | 08:48 | 08:52 | 1875 |
| C3.5 | 05:30 | 05:36 | 05:58 | 1875 |
| C1.9 | 03:51 | 03:55 | 04:00 | 1875 |