Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 2, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 866 | S06 | E30 | 01 | 0080 | Alpha | Apr 5, 2006 | Apr 12, 2006 | Apr 25, 2006 |
| № 865 | S12 | E09 | 18 | 0240 | Beta-Gamma-Delta | Apr 4, 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.
