Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 30, 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 | W00 | 05 | 0020 | Beta | May 31, 2010 | Jun 7, 2010 | Jun 21, 2010 |
| № 1074 | N19 | W55 | 03 | 0010 | Beta | May 27, 2010 | Jun 3, 2010 | Jun 16, 2010 |
| № 1073 | N13 | E37 | 05 | 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.