Solar flares on October 17, 2015
The most powerful solar flare in 24 hours
M1.5 (strong) flare - October 17 at 11:42 PM
Solar activity index
Value as of the end of the day on October 17, 2015
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 16, 2015 to October 17, 2015
Time zone — UTC+03 (Tula)
List of solar flares for October 17, 2015
The total number of solar flares of class C and higher — 13 flares
C class — 11 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.5 | 23:35 | 23:42 | 23:46 | 2437 |
| M1.1 | 23:09 | 23:23 | 23:28 | 2437 |
| C8.6 | 21:39 | 21:51 | 22:00 | 2437 |
| C1.0 | 19:53 | 19:56 | 20:00 | 2434 |
| C1.5 | 18:38 | 18:44 | 18:51 | 2435 |
| C1.8 | 17:22 | 17:29 | 17:39 | 2435 |
| C2.3 | 15:45 | 15:49 | 15:52 | 2434 |
| C4.5 | 15:31 | 15:35 | 15:39 | 2434 |
| C2.5 | 09:25 | 09:29 | 09:32 | 2434 |
| C2.8 | 07:13 | 07:17 | 07:22 | 2435 |
| C1.3 | 05:43 | 05:48 | 05:59 | 2434 |
| C3.4 | 04:21 | 04:40 | 04:56 | 2435 |
| C1.1 | 00:53 | 00:58 | 01:15 | 2434 |