Solar flares on June 21, 2026
The most powerful solar flare in 24 hours
M6.8 (strong) flare - June 21 at 10:29 PM
Solar activity index
Value as of the end of the day on June 21, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 20, 2026 to June 21, 2026
Time zone — UTC+03 (Penza)
List of solar flares for June 21, 2026
The total number of solar flares of class C and higher — 7 flares
C class — 5 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M6.8 | 22:17 | 22:29 | 22:35 | 4473 |
| C2.6 | 21:07 | 21:18 | 21:21 | 4473 |
| C1.1 | 11:31 | 11:38 | 11:41 | 4473 |
| M2.6 | 05:25 | 05:46 | 05:58 | 4473 |
| C1.1 | 04:01 | 04:06 | 04:14 | 4473 |
| C1.3 | 02:01 | 02:06 | 02:12 | 4473 |
| C4.8 | 00:22 | 00:45 | 01:05 | 4473 |