Solar flares on April 23, 2004
The most powerful solar flare in 24 hours
M1.5 (strong) flare - April 23 at 7:50 AM
Solar activity index
Value as of the end of the day on April 23, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 22, 2004 to April 23, 2004
Time zone — UTC-04 (Moosonee) — summer time
List of solar flares for April 23, 2004
The total number of solar flares of class C and higher — 21 flares
C class — 19 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.9 | 22:02 | 22:08 | 22:13 | 597 |
| C2.9 | 20:53 | 21:00 | 21:02 | 597 |
| C1.6 | 20:06 | 20:11 | 20:23 | 597 |
| C2.9 | 19:29 | 19:37 | 19:41 | 597 |
| C2.5 | 18:50 | 18:54 | 19:00 | 597 |
| C1.8 | 18:11 | 18:16 | 18:21 | 597 |
| C2.8 | 17:23 | 17:26 | 17:29 | 597 |
| M1.1 | 17:02 | 17:12 | 17:14 | 597 |
| C1.6 | 15:03 | 15:06 | 15:10 | 597 |
| C4.8 | 13:21 | 13:31 | 13:34 | 597 |
| C3.9 | 11:58 | 12:05 | 12:11 | 597 |
| C1.4 | 10:34 | 10:37 | 10:40 | 597 |
| C5.1 | 07:59 | 08:03 | 08:05 | 597 |
| M1.5 | 07:41 | 07:50 | 07:52 | 597 |
| C4.0 | 06:39 | 06:44 | 06:47 | 597 |
| C3.0 | 05:44 | 05:47 | 05:52 | 597 |
| C4.4 | 05:25 | 05:30 | 05:32 | 597 |
| C6.1 | 03:43 | 03:56 | 04:01 | 597 |
| C1.2 | 03:16 | 03:19 | 03:25 | 597 |
| C1.8 | 02:33 | 02:50 | 03:01 | 597 |
| C1.9 | 00:50 | 00:56 | 01:01 | 597 |