Solar flares on October 20, 2004
The most powerful solar flare in 24 hours
M2.6 (strong) flare - October 20 at 10:51 AM
Solar activity index
Value as of the end of the day on October 20, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 19, 2004 to October 20, 2004
Time zone — UTC+00
List of solar flares for October 20, 2004
The total number of solar flares of class C and higher — 2 flares
C class — 1 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M2.6 | 10:43 | 10:51 | 10:56 | 687 |
| C4.5 | 02:09 | 02:13 | 02:16 | 682 |