Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 31, 2010. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1075 | S20 | W14 | 02 | 0010 | Beta | May 31, 2010 | Jun 7, 2010 | Jun 20, 2010 |
| № 1074 | N17 | W70 | 02 | 0010 | Alpha | May 27, 2010 | Jun 2, 2010 | Jun 16, 2010 |
| № 1073 | N13 | E23 | 06 | 0020 | Beta | Jun 3, 2010 | Jun 9, 2010 | Jun 23, 2010 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1981 to May 2010. The gray background is the average SSN index.
