Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 24, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 875 | S11 | E73 | 03 | 0270 | Beta | Apr 30, 2006 | May 7, 2006 | May 21, 2006 |
| № 874 | S01 | W53 | 01 | 0000 | Alpha | Apr 21, 2006 | Apr 28, 2006 | May 11, 2006 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1977 to April 2006. The gray background is the average SSN index.
