Solar flares on May 4, 2015
The most powerful solar flare in 24 hours
C8.0 (normal) flare - May 4 at 1:52 AM
Solar activity index
Value as of the end of the day on May 4, 2015
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 3, 2015 to May 4, 2015
Time zone — UTC+01 (London) — summer time
List of solar flares for May 4, 2015
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.7 | 23:40 | 23:50 | 23:53 | — |
| C5.1 | 17:57 | 18:05 | 18:12 | — |
| C2.0 | 11:23 | 11:32 | 11:38 | — |
| C1.4 | 09:38 | 09:52 | 10:01 | 2335 |
| C1.0 | 05:57 | 06:00 | 06:02 | 2335 |
| C1.5 | 05:18 | 05:21 | 05:28 | 2335 |
| C3.0 | 03:49 | 04:03 | 04:12 | 2338 |
| C8.0 | 01:43 | 01:52 | 02:06 | 2335 |
| C2.2 | 00:04 | 00:47 | 01:07 | 2335 |