Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 1212 | S13 | E48 | 01 | 0010 | Alpha | May 16, 2011 | May 23, 2011 | Jun 6, 2011 |
| № 1210 | N19 | W19 | 11 | 0050 | Beta | May 11, 2011 | May 18, 2011 | Jun 1, 2011 |
| № 1208 | N12 | E10 | 08 | 0050 | Beta | May 14, 2011 | May 20, 2011 | Jun 3, 2011 |
| № 1207 | N21 | W49 | 02 | 0010 | Beta | May 9, 2011 | May 16, 2011 | May 30, 2011 |
| № 1204 | N17 | W83 | 01 | 0050 | Alpha | May 7, 2011 | May 13, 2011 | May 27, 2011 |
| № 1203 | N18 | W90 | 01 | 0060 | Alpha | May 6, 2011 | May 13, 2011 | May 27, 2011 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1982, January to 2011, May. Gray background - average solar cycle.
