Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 20, 2013. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1750 | S09 | W71 | 12 | 0090 | Beta | May 16, 2013 | May 23, 2013 | Jun 5, 2013 |
| № 1748 | N12 | W04 | 23 | 0110 | Beta-Gamma-Delta | May 21, 2013 | May 28, 2013 | Jun 10, 2013 |
| № 1747 | S17 | W49 | 02 | 0020 | Alpha | May 18, 2013 | May 24, 2013 | Jun 7, 2013 |
| № 1746 | S27 | W44 | 05 | 0140 | Beta | May 18, 2013 | May 25, 2013 | Jun 8, 2013 |
| № 1745 | N13 | W44 | 08 | 0180 | Beta | May 18, 2013 | May 25, 2013 | Jun 7, 2013 |
| № 1744 | N06 | W71 | 03 | 0050 | Beta | May 16, 2013 | May 23, 2013 | Jun 5, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to May 2013. The gray background is the average SSN index.
