Solar flares on October 15, 2015
The most powerful solar flare in 24 hours
C3.9 (normal) flare - October 15 at 7:38 PM
Solar activity index
Value as of the end of the day on October 15, 2015
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 14, 2015 to October 15, 2015
Time zone — UTC+01 (London) — summer time
List of solar flares for October 15, 2015
The total number of solar flares of class C and higher — 13 flares
C class — 13 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.1 | 22:35 | 22:41 | 22:49 | 2434 |
| C3.4 | 20:51 | 20:56 | 20:59 | 2434 |
| C1.1 | 20:27 | 20:32 | 20:36 | 2434 |
| C1.0 | 20:10 | 20:19 | 20:24 | — |
| C3.9 | 19:31 | 19:38 | 19:41 | 2434 |
| C2.2 | 17:09 | 17:17 | 17:21 | 2434 |
| C3.6 | 14:42 | 14:49 | 14:52 | 2434 |
| C1.1 | 14:12 | 14:25 | 14:28 | 2434 |
| C1.1 | 13:22 | 13:28 | 13:31 | 2434 |
| C2.7 | 11:42 | 11:48 | 11:52 | 2434 |
| C1.1 | 08:40 | 08:46 | 08:49 | 2434 |
| C1.7 | 07:41 | 07:47 | 07:50 | 2434 |
| C1.5 | 02:22 | 02:53 | 03:30 | 2434 |