Solar flares on July 21, 2000
The most powerful solar flare in 24 hours
M5.5 (strong) flare - July 21 at 5:37 PM
Solar activity index
Value as of the end of the day on July 21, 2000
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 20, 2000 to July 21, 2000
Time zone — UTC+03 (Simferopol)
List of solar flares for July 21, 2000
The total number of solar flares of class C and higher — 14 flares
C class — 10 | M class — 4 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C9.0 | 23:38 | 23:47 | 23:59 | 9090 |
| C4.3 | 23:17 | 23:21 | 23:23 | 9090 |
| C6.9 | 21:28 | 21:37 | 21:51 | 9097 |
| M5.5 | 17:30 | 17:37 | 17:43 | 9090 |
| C9.5 | 17:03 | 17:09 | 17:21 | 9087 |
| M1.9 | 13:33 | 13:50 | 13:56 | 9087 |
| M1.9 | 13:05 | 13:15 | 13:22 | 9090 |
| C6.3 | 11:39 | 11:59 | 12:08 | 9087 |
| M1.7 | 08:17 | 08:24 | 08:29 | 9090 |
| C6.0 | 07:37 | 07:41 | 07:45 | 9087 |
| C9.7 | 06:54 | 07:02 | 07:08 | — |
| C4.0 | 06:07 | 06:12 | 06:16 | 9087 |
| C4.9 | 02:07 | 02:12 | 02:19 | — |
| C3.5 | 01:10 | 01:14 | 01:17 | 9087 |