Solar flares on September 19, 2004
The most powerful solar flare in 24 hours
M1.9 (strong) flare - September 19 at 5:12 PM
Solar activity index
Value as of the end of the day on September 19, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 18, 2004 to September 19, 2004
Time zone — UTC+00
List of solar flares for September 19, 2004
The total number of solar flares of class C and higher — 3 flares
C class — 2 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.9 | 20:52 | 21:15 | 21:32 | — |
| M1.9 | 16:46 | 17:12 | 17:39 | 672 |
| C3.8 | 10:16 | 11:48 | 12:13 | 672 |