Solar flares on February 21, 2025
The most powerful solar flare in 24 hours
M3.3 (strong) flare - February 21 at 12:15 PM
Solar activity index
Value as of the end of the day on February 21, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 20, 2025 to February 21, 2025
Time zone — UTC+00
List of solar flares for February 21, 2025
The total number of solar flares of class C and higher — 8 flares
C class — 6 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.8 | 22:39 | 22:48 | 22:53 | 4000 |
| C3.9 | 19:42 | 19:53 | 20:02 | 3998 |
| C3.6 | 18:50 | 18:59 | 19:05 | 3990 |
| C7.6 | 15:52 | 15:59 | 16:03 | 3996 |
| M1.4 | 14:31 | 14:35 | 14:39 | 4000 |
| M3.3 | 12:05 | 12:15 | 12:19 | 4000 |
| C5.8 | 11:12 | 11:19 | 11:25 | 3990 |
| C4.4 | 07:56 | 08:10 | 08:24 | 3998 |