Solar flares on October 21, 2012
The most powerful solar flare in 24 hours
M1.3 (strong) flare - October 21 at 2:03 PM
Solar activity index
Value as of the end of the day on October 21, 2012
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 20, 2012 to October 21, 2012
Time zone — UTC-06 (Santa Fe) — summer time
List of solar flares for October 21, 2012
The total number of solar flares of class C and higher — 10 flares
C class — 9 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 19:37 | 19:40 | 19:42 | 1598 |
| C3.4 | 18:21 | 18:26 | 18:36 | 1598 |
| C1.2 | 17:39 | 17:48 | 17:53 | 1598 |
| C1.2 | 16:38 | 17:00 | 17:08 | 1598 |
| C1.1 | 15:45 | 15:51 | 15:59 | 1598 |
| M1.3 | 13:46 | 14:03 | 14:20 | 1598 |
| C1.2 | 12:42 | 12:45 | 12:48 | 1598 |
| C1.1 | 11:52 | 12:18 | 12:31 | 1598 |
| C1.8 | 06:58 | 07:16 | 07:32 | 1596 |
| C1.1 | 05:06 | 05:09 | 05:18 | 1596 |