Solar flares on April 21, 2021
The most powerful solar flare in 24 hours
C1.5 (normal) flare - April 21 at 4:29 AM
Solar activity index
Value as of the end of the day on April 21, 2021
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 20, 2021 to April 21, 2021
Time zone — UTC+03 (Tambov)
List of solar flares for April 21, 2021
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 |
|---|---|---|---|---|
| C1.5 | 04:18 | 04:29 | 04:41 | 2817 |