Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 5, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1715 | N18 | W14 | 02 | 0010 | Beta | Apr 5, 2013 | Apr 12, 2013 | Apr 25, 2013 |
| № 1714 | N12 | E40 | 01 | 0100 | Alpha | Apr 9, 2013 | Apr 16, 2013 | Apr 29, 2013 |
| № 1713 | N09 | W05 | 17 | 0030 | Beta | Apr 6, 2013 | Apr 12, 2013 | Apr 26, 2013 |
| № 1711 | S19 | E11 | 19 | 0580 | Beta | Apr 7, 2013 | Apr 14, 2013 | Apr 27, 2013 |
| № 1710 | S22 | W29 | 07 | 0060 | Beta | Apr 4, 2013 | Apr 11, 2013 | Apr 24, 2013 |
| № 1708 | N13 | W24 | 01 | 0010 | Alpha | Apr 4, 2013 | Apr 11, 2013 | Apr 25, 2013 |
| № 1704 | N15 | W88 | 02 | 0030 | Alpha | Mar 30, 2013 | Apr 6, 2013 | Apr 20, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to April 2013. The gray background is the average SSN index.
