Solar flares on May 21, 2015
The most powerful solar flare in 24 hours
C1.1 (normal) flare - May 21 at 8:06 AM
Solar activity index
Value as of the end of the day on May 21, 2015
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 20, 2015 to May 21, 2015
Time zone — UTC+01 (London) — summer time
List of solar flares for May 21, 2015
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 |
|---|---|---|---|---|
| C1.1 | 07:57 | 08:06 | 08:17 | 2349 |