Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 21, 2012. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1487 | N19 | W03 | 05 | 0010 | Beta | May 22, 2012 | May 28, 2012 | Jun 11, 2012 |
| № 1486 | N16 | E42 | 04 | 0140 | Beta | May 25, 2012 | Jun 1, 2012 | Jun 15, 2012 |
| № 1484 | N10 | W15 | 17 | 0280 | Beta | May 21, 2012 | May 28, 2012 | Jun 10, 2012 |
| № 1483 | S25 | W41 | 06 | 0050 | Beta | May 19, 2012 | May 26, 2012 | Jun 9, 2012 |
| № 1482 | N14 | W42 | 08 | 0260 | Beta | May 19, 2012 | May 25, 2012 | Jun 8, 2012 |
| № 1479 | N14 | W51 | 02 | 0050 | Alpha | May 18, 2012 | May 25, 2012 | Jun 7, 2012 |
| № 1478 | S24 | W73 | 01 | 0060 | Alpha | May 16, 2012 | May 23, 2012 | Jun 6, 2012 |
| № 1477 | S17 | W83 | 01 | 0030 | Alpha | May 16, 2012 | May 22, 2012 | Jun 5, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to May 2012. The gray background is the average SSN index.
