Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 6, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 868 | S07 | W04 | 06 | 0030 | Beta | Apr 7, 2006 | Apr 13, 2006 | Apr 27, 2006 |
| № 867 | S16 | W24 | 14 | 0120 | Beta-Gamma | Apr 5, 2006 | Apr 12, 2006 | Apr 26, 2006 |
| № 866 | S06 | W21 | 06 | 0110 | Beta | Apr 5, 2006 | Apr 12, 2006 | Apr 26, 2006 |
| № 865 | S11 | W45 | 22 | 0600 | Beta-Gamma | 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.
