Solar flares on May 13, 2025
The most powerful solar flare in 24 hours
X1.2 (very strong) flare - May 13 at 12:38 PM
Solar activity index
Value as of the end of the day on May 13, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 12, 2025 to May 13, 2025
Time zone — UTC-03 (Saint john) — summer time
List of solar flares for May 13, 2025
The total number of solar flares of class C and higher — 5 flares
C class — 4 | M class — 0 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.1 | 23:08 | 23:15 | 23:21 | 4087 |
| C1.2 | 22:45 | 22:57 | 23:08 | 4087 |
| C2.3 | 19:34 | 19:41 | 19:53 | 4085 |
| X1.2 | 12:25 | 12:38 | 12:44 | 4086 |
| C3.7 | 10:49 | 10:57 | 11:00 | 4085 |