Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1644 | N15 | E66 | 02 | 0080 | Beta | Jan 9, 2013 | Jan 16, 2013 | Jan 29, 2013 |
| № 1643 | S14 | E45 | 02 | 0010 | Beta | Jan 7, 2013 | Jan 14, 2013 | Jan 28, 2013 |
| № 1642 | S23 | E48 | 01 | 0140 | Alpha | Jan 8, 2013 | Jan 15, 2013 | Jan 29, 2013 |
| № 1641 | N05 | E23 | 03 | 0050 | Beta | Jan 6, 2013 | Jan 13, 2013 | Jan 26, 2013 |
| № 1640 | N28 | W21 | 18 | 0220 | Beta | Jan 2, 2013 | Jan 9, 2013 | Jan 23, 2013 |
| № 1638 | N13 | W07 | 04 | 0110 | Beta | 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.
