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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 13, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1747 | S18 | E50 | 04 | 0010 | Beta | May 18, 2013 | May 25, 2013 | Jun 7, 2013 |
| № 1746 | S27 | E52 | 11 | 0270 | Beta-Gamma | May 18, 2013 | May 25, 2013 | Jun 8, 2013 |
| № 1745 | N14 | E53 | 15 | 0600 | Beta-Gamma | May 18, 2013 | May 25, 2013 | Jun 7, 2013 |
| № 1744 | N05 | E30 | 13 | 0190 | Beta | May 16, 2013 | May 23, 2013 | Jun 5, 2013 |
| № 1743 | N24 | E17 | 10 | 0110 | Beta | May 15, 2013 | May 22, 2013 | Jun 5, 2013 |
| № 1742 | N30 | E12 | 05 | 0050 | Beta | May 15, 2013 | May 22, 2013 | Jun 5, 2013 |
| № 1741 | S23 | W16 | 09 | 0030 | Beta | May 13, 2013 | May 20, 2013 | Jun 2, 2013 |
| № 1740 | S21 | W37 | 01 | 0010 | Alpha | May 11, 2013 | May 18, 2013 | Jun 1, 2013 |
| № 1739 | N11 | W51 | 01 | 0000 | Alpha | May 10, 2013 | May 17, 2013 | May 30, 2013 |
| № 1738 | N17 | W57 | 04 | 0010 | Beta | May 10, 2013 | May 16, 2013 | May 30, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to May 2013. The gray background is the average SSN index.
