Solar flares on May 28, 2011
The most powerful solar flare in 24 hours
C8.3 (normal) flare - May 28 at 6:31 AM
Solar activity index
Value as of the end of the day on May 28, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 27, 2011 to May 28, 2011
Time zone — UTC+03 (Moscow)
List of solar flares for May 28, 2011
The total number of solar flares of class C and higher — 17 flares
C class — 17 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.2 | 22:44 | 22:53 | 23:01 | — |
| C2.2 | 21:42 | 21:46 | 21:50 | 1226 |
| C1.9 | 20:20 | 20:23 | 20:26 | 1226 |
| C1.0 | 18:39 | 18:43 | 18:47 | 1226 |
| C1.2 | 18:20 | 18:25 | 18:29 | — |
| C1.0 | 16:37 | 16:40 | 16:43 | 1226 |
| C1.4 | 16:11 | 16:15 | 16:17 | 1226 |
| C1.9 | 15:42 | 15:45 | 15:48 | 1226 |
| C5.3 | 13:22 | 13:30 | 14:21 | 1226 |
| C7.7 | 11:43 | 12:01 | 12:06 | 1226 |
| C4.4 | 11:01 | 11:06 | 11:09 | 1226 |
| C2.1 | 09:51 | 10:11 | 10:23 | — |
| C1.7 | 09:15 | 09:19 | 09:23 | 1226 |
| C8.3 | 06:04 | 06:31 | 06:43 | 1226 |
| C1.6 | 05:22 | 05:32 | 05:51 | 1226 |
| C1.4 | 03:27 | 03:35 | 03:43 | 1226 |
| C1.2 | 01:32 | 01:46 | 02:10 | 1226 |