Solar flares on July 20, 2004
The most powerful solar flare in 24 hours
M8.6 (strong) flare - July 20 at 3:32 PM
Solar activity index
Value as of the end of the day on July 20, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 19, 2004 to July 20, 2004
Time zone — UTC+03 (Belgorod)
List of solar flares for July 20, 2004
The total number of solar flares of class C and higher — 8 flares
C class — 7 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.8 | 21:15 | 21:21 | 21:28 | 652 |
| M8.6 | 15:22 | 15:32 | 15:45 | 652 |
| C6.0 | 14:01 | 14:26 | 14:37 | 652 |
| C2.3 | 09:31 | 09:48 | 10:02 | — |
| C1.6 | 09:18 | 09:22 | 09:24 | — |
| C1.4 | 07:53 | 07:57 | 08:00 | 652 |
| C2.3 | 07:11 | 07:23 | 07:30 | 652 |
| C3.3 | 03:55 | 04:01 | 04:10 | 649 |