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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 12, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1657 | S17 | E20 | 02 | 0010 | Beta | Jan 15, 2013 | Jan 22, 2013 | Feb 4, 2013 |
| № 1656 | N22 | E49 | 01 | 0010 | Alpha | Jan 17, 2013 | Jan 24, 2013 | Feb 7, 2013 |
| № 1655 | S21 | W27 | 02 | 0010 | Beta | Jan 11, 2013 | Jan 18, 2013 | Feb 1, 2013 |
| № 1654 | N08 | E28 | 36 | 1100 | Beta-Gamma | Jan 15, 2013 | Jan 22, 2013 | Feb 5, 2013 |
| № 1653 | N09 | W11 | 02 | 0010 | Beta | Jan 12, 2013 | Jan 19, 2013 | Feb 2, 2013 |
| № 1652 | N19 | W03 | 16 | 0210 | Beta-Gamma | Jan 13, 2013 | Jan 20, 2013 | Feb 3, 2013 |
| № 1650 | S28 | W19 | 02 | 0110 | Beta | Jan 12, 2013 | Jan 19, 2013 | Feb 2, 2013 |
| № 1649 | S16 | W24 | 03 | 0060 | Beta | Jan 11, 2013 | Jan 18, 2013 | Feb 1, 2013 |
| № 1644 | N15 | W61 | 01 | 0020 | Alpha | Jan 9, 2013 | Jan 15, 2013 | Jan 29, 2013 |
| № 1642 | S25 | W73 | 01 | 0110 | Alpha | Jan 8, 2013 | Jan 15, 2013 | Jan 28, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to January 2013. The gray background is the average SSN index.
