Solar flares on July 20, 2013
The most powerful solar flare in 24 hours
C2.1 (normal) flare - July 20 at 4:38 AM
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+01 (London) — summer time
List of solar flares for July 20, 2013
The total number of solar flares of class C and higher — 1 flare
C class — 1 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.1 | 04:34 | 04:38 | 04:44 | 1793 |