Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 17, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1752 | N18 | W28 | 09 | 0030 | Beta | May 16, 2013 | May 23, 2013 | Jun 5, 2013 |
| № 1751 | S23 | E09 | 06 | 0010 | Beta | May 19, 2013 | May 26, 2013 | Jun 8, 2013 |
| № 1750 | S10 | W28 | 08 | 0090 | Beta | May 16, 2013 | May 23, 2013 | Jun 5, 2013 |
| № 1749 | S22 | W53 | 06 | 0010 | Beta | May 14, 2013 | May 21, 2013 | Jun 4, 2013 |
| № 1748 | N12 | E36 | 19 | 0270 | Beta-Gamma-Delta | May 21, 2013 | May 28, 2013 | Jun 10, 2013 |
| № 1747 | S17 | W05 | 10 | 0100 | Beta | May 18, 2013 | May 24, 2013 | Jun 7, 2013 |
| № 1746 | S27 | W01 | 10 | 0230 | Beta | May 18, 2013 | May 25, 2013 | Jun 8, 2013 |
| № 1745 | N12 | W01 | 20 | 0350 | Beta | May 18, 2013 | May 25, 2013 | Jun 7, 2013 |
| № 1744 | N05 | W27 | 18 | 0120 | Beta | May 16, 2013 | May 23, 2013 | Jun 5, 2013 |
| № 1743 | N22 | W40 | 06 | 0080 | Beta | May 15, 2013 | May 22, 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.
