Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 28, 2005. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 768 | S08 | W65 | 03 | 0020 | Beta | May 24, 2005 | May 31, 2005 | Jun 14, 2005 |
| № 767 | S08 | W04 | 17 | 0240 | Beta-Gamma | May 29, 2005 | Jun 5, 2005 | Jun 18, 2005 |
| № 766 | N13 | W08 | 01 | 0010 | Alpha | May 29, 2005 | Jun 4, 2005 | Jun 18, 2005 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to May 2005. The gray background is the average SSN index.