Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 9, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 869 | S12 | W02 | 07 | 0070 | Beta | Apr 10, 2006 | Apr 17, 2006 | Apr 30, 2006 |
| № 867 | S16 | W65 | 03 | 0050 | Beta | Apr 5, 2006 | Apr 12, 2006 | Apr 25, 2006 |
| № 866 | S06 | W61 | 04 | 0080 | Beta | Apr 5, 2006 | Apr 12, 2006 | Apr 26, 2006 |
| № 865 | S09 | W88 | 03 | 0180 | Beta | Apr 3, 2006 | Apr 10, 2006 | Apr 24, 2006 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1977 to April 2006. The gray background is the average SSN index.
