Solar flares on April 28, 2011
The most powerful solar flare in 24 hours
C2.4 (normal) flare - April 28 at 2:58 PM
Solar activity index
Value as of the end of the day on April 28, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 27, 2011 to April 28, 2011
Time zone — UTC+03 (Murmansk)
List of solar flares for April 28, 2011
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.1 | 15:39 | 15:47 | 15:51 | — |
| C2.4 | 14:51 | 14:58 | 15:03 | 1199 |
| C1.0 | 05:32 | 05:40 | 05:46 | 1196 |