Solar flares on October 17, 2015
The most powerful solar flare in 24 hours
M1.5 (strong) flare - October 17 at 2:42 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-06 (Fort Smith) — summer time
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 |
|---|---|---|---|---|
| C1.5 | 23:08 | 23:11 | 23:13 | 2436 |
| C6.6 | 17:18 | 17:35 | 17:48 | 2437 |
| C4.8 | 15:52 | 15:59 | 16:02 | 2437 |
| C4.7 | 15:12 | 15:19 | 15:25 | 2434 |
| M1.5 | 14:35 | 14:42 | 14:46 | 2437 |
| M1.1 | 14:09 | 14:23 | 14:28 | 2437 |
| C8.6 | 12:39 | 12:51 | 13:00 | 2437 |
| C1.0 | 10:53 | 10:56 | 11:00 | 2434 |
| C1.5 | 09:38 | 09:44 | 09:51 | 2435 |
| C1.8 | 08:22 | 08:29 | 08:39 | 2435 |
| C2.3 | 06:45 | 06:49 | 06:52 | 2434 |
| C4.5 | 06:31 | 06:35 | 06:39 | 2434 |
| C2.5 | 00:25 | 00:29 | 00:32 | 2434 |