Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 1454 | S13 | E71 | 02 | 0010 | Beta | Apr 17, 2012 | Apr 24, 2012 | May 8, 2012 |
| № 1452 | N18 | W64 | 02 | 0005 | Alpha | Apr 7, 2012 | Apr 14, 2012 | Apr 28, 2012 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1983, January to 2012, April. Gray background - average solar cycle.
