Solar flares on February 21, 2000
The most powerful solar flare in 24 hours
M1.8 (strong) flare - February 21 at 3:36 AM
Solar activity index
Value as of the end of the day on February 21, 2000
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 20, 2000 to February 21, 2000
Time zone — UTC-05 (Barrie)
List of solar flares for February 21, 2000
The total number of solar flares of class C and higher — 10 flares
C class — 8 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C6.5 | 23:41 | 23:52 | 23:57 | — |
| C1.9 | 20:47 | 20:54 | 21:11 | — |
| C1.9 | 19:11 | 19:15 | 19:20 | 8882 |
| M1.2 | 18:13 | 18:19 | 18:26 | 8869 |
| C2.1 | 11:46 | 12:08 | 12:17 | 8869 |
| C1.3 | 08:25 | 08:27 | 08:34 | — |
| M1.8 | 03:26 | 03:36 | 03:41 | — |
| C1.2 | 02:43 | 02:47 | 02:49 | — |
| C1.1 | 02:27 | 02:30 | 02:35 | — |
| C4.3 | 00:14 | 00:25 | 00:34 | — |