Solar flares on September 27, 2012
The most powerful solar flare in 24 hours
C4.4 (normal) flare - September 27 at 1:20 PM
Solar activity index
Value as of the end of the day on September 27, 2012
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 26, 2012 to September 27, 2012
Time zone — UTC-04 (Barrie) — summer time
List of solar flares for September 27, 2012
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 |
|---|---|---|---|---|
| C3.7 | 19:36 | 19:57 | 20:34 | 1577 |
| C4.4 | 13:04 | 13:20 | 13:30 | 1579 |