Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 11, 2006. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 871 | S08 | E52 | 02 | 0050 | Beta | Apr 16, 2006 | Apr 23, 2006 | May 6, 2006 |
| № 870 | S08 | E22 | 01 | 0010 | Alpha | Apr 14, 2006 | Apr 20, 2006 | May 4, 2006 |
| № 869 | S12 | W31 | 15 | 0090 | Beta | Apr 10, 2006 | Apr 16, 2006 | Apr 30, 2006 |
| № 867 | S15 | W96 | 01 | 0030 | Alpha | Apr 5, 2006 | Apr 12, 2006 | Apr 25, 2006 |
| № 866 | S05 | W92 | 01 | 0030 | Alpha | Apr 5, 2006 | Apr 12, 2006 | Apr 25, 2006 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1977 to April 2006. The gray background is the average SSN index.
