Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 1, 2009. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1016 | S07 | W79 | 02 | 0010 | Alpha | Apr 26, 2009 | May 3, 2009 | May 16, 2009 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1980 to May 2009. The gray background is the average SSN index.
