Solar flares on May 18, 2026
The most powerful solar flare in 24 hours
C9.7 (normal) flare - May 18 at 2:23 AM
Solar activity index
Value as of the end of the day on May 18, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 17, 2026 to May 18, 2026
Time zone — UTC+05:30 (Indore)
List of solar flares for May 18, 2026
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.9 | 23:40 | 23:58 | 00:15 | 4436 |
| C9.7 | 02:12 | 02:23 | 02:35 | 4436 |