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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 1, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1735 | S17 | W60 | 11 | 0060 | Beta | Apr 27, 2013 | May 4, 2013 | May 18, 2013 |
| № 1734 | S19 | E53 | 09 | 0560 | Beta | May 6, 2013 | May 13, 2013 | May 27, 2013 |
| № 1733 | S17 | W68 | 01 | 0010 | Alpha | Apr 27, 2013 | May 4, 2013 | May 17, 2013 |
| № 1732 | S17 | E28 | 11 | 0170 | Beta | May 4, 2013 | May 11, 2013 | May 25, 2013 |
| № 1731 | N09 | W01 | 38 | 0380 | Beta-Gamma-Delta | May 2, 2013 | May 9, 2013 | May 22, 2013 |
| № 1730 | S18 | W32 | 24 | 0180 | Beta-Gamma-Delta | Apr 29, 2013 | May 6, 2013 | May 20, 2013 |
| № 1728 | N19 | W28 | 01 | 0020 | Alpha | Apr 30, 2013 | May 7, 2013 | May 20, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to May 2013. The gray background is the average SSN index.
