Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 1, 2008. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 989 | S11 | W01 | 01 | 0010 | Alpha | Apr 2, 2008 | Apr 9, 2008 | Apr 22, 2008 |
| № 988 | S07 | W35 | 09 | 0190 | Beta | Mar 30, 2008 | Apr 6, 2008 | Apr 20, 2008 |
| № 987 | S07 | W58 | 05 | 0050 | Beta | Mar 29, 2008 | Apr 4, 2008 | Apr 18, 2008 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1979 to April 2008. The gray background is the average SSN index.
