Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 11, 2012. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 1454 | S13 | E72 | 02 | 0010 | Beta | Apr 17, 2012 | Apr 24, 2012 | May 8, 2012 |
| № 1452 | N18 | W63 | 02 | 0005 | Alpha | Apr 7, 2012 | Apr 14, 2012 | Apr 28, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to April 2012. The gray background is the average SSN index.
