Solar flares on October 18, 2015
The most powerful solar flare in 24 hours
C1.7 (normal) flare - October 18 at 8:06 PM
Solar activity index
Value as of the end of the day on October 18, 2015
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 17, 2015 to October 18, 2015
Time zone — UTC-06 (Denver) — summer time
List of solar flares for October 18, 2015
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 22:32 | 22:40 | 22:46 | 2434 |
| C1.7 | 19:58 | 20:06 | 20:15 | — |
| C1.4 | 14:02 | 14:08 | 14:13 | 2437 |
| C1.3 | 01:24 | 01:30 | 01:50 | 2436 |