Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 4, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1646 | N13 | E59 | 01 | 0080 | Alpha | Jan 9, 2013 | Jan 16, 2013 | Jan 30, 2013 |
| № 1645 | S13 | W03 | 11 | 0030 | Beta | Jan 5, 2013 | Jan 11, 2013 | Jan 25, 2013 |
| № 1644 | N14 | E50 | 02 | 0060 | Alpha | Jan 9, 2013 | Jan 15, 2013 | Jan 29, 2013 |
| № 1642 | S24 | E36 | 01 | 0080 | Alpha | Jan 8, 2013 | Jan 15, 2013 | Jan 28, 2013 |
| № 1641 | N05 | E09 | 01 | 0050 | Alpha | Jan 6, 2013 | Jan 12, 2013 | Jan 26, 2013 |
| № 1640 | N28 | W33 | 28 | 0240 | Beta-Gamma-Delta | Jan 2, 2013 | Jan 9, 2013 | Jan 23, 2013 |
| № 1638 | N13 | W19 | 02 | 0100 | Alpha | Jan 3, 2013 | Jan 10, 2013 | Jan 24, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to January 2013. The gray background is the average SSN index.
