Solar flares on July 20, 2013
The most powerful solar flare in 24 hours
C1.0 (normal) flare - July 20 at 11:08 PM
Solar activity index
Value as of the end of the day on July 20, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 19, 2013 to July 20, 2013
Time zone — UTC-04 (Indianapolis) — summer time
List of solar flares for July 20, 2013
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 22:58 | 23:08 | 23:10 | 1800 |
| C1.0 | 19:33 | 19:38 | 19:42 | 1800 |