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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 3, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1714 | N12 | E67 | 01 | 0060 | Alpha | Apr 9, 2013 | Apr 16, 2013 | Apr 29, 2013 |
| № 1713 | N08 | E24 | 08 | 0060 | Beta | Apr 6, 2013 | Apr 12, 2013 | Apr 26, 2013 |
| № 1711 | S17 | E38 | 07 | 0460 | Beta | Apr 7, 2013 | Apr 14, 2013 | Apr 27, 2013 |
| № 1710 | S21 | W04 | 05 | 0010 | Beta | Apr 4, 2013 | Apr 10, 2013 | Apr 24, 2013 |
| № 1708 | N10 | E05 | 04 | 0020 | Beta | Apr 4, 2013 | Apr 11, 2013 | Apr 25, 2013 |
| № 1707 | S11 | W40 | 03 | 0010 | Alpha | Apr 1, 2013 | Apr 8, 2013 | Apr 21, 2013 |
| № 1704 | N16 | W59 | 05 | 0080 | Beta | 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.
