Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 29, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1664 | N29 | W63 | 02 | 0010 | Beta | Jan 25, 2013 | Feb 1, 2013 | Feb 15, 2013 |
| № 1663 | S11 | E21 | 08 | 0080 | Beta | Jan 31, 2013 | Feb 7, 2013 | Feb 21, 2013 |
| № 1662 | N27 | E03 | 01 | 0060 | Alpha | Jan 30, 2013 | Feb 6, 2013 | Feb 20, 2013 |
| № 1661 | N13 | W19 | 01 | 0000 | Alpha | Jan 28, 2013 | Feb 4, 2013 | Feb 18, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to January 2013. The gray background is the average SSN index.
