Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 25, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1662 | N33 | E56 | 01 | 0060 | Alpha | Jan 30, 2013 | Feb 6, 2013 | Feb 21, 2013 |
| № 1661 | N17 | E35 | 02 | 0020 | Beta | Jan 29, 2013 | Feb 4, 2013 | Feb 18, 2013 |
| № 1660 | N10 | W54 | 16 | 0180 | Beta | Jan 22, 2013 | Jan 29, 2013 | Feb 11, 2013 |
| № 1658 | S15 | W83 | 01 | 0060 | Alpha | Jan 20, 2013 | Jan 26, 2013 | Feb 9, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to January 2013. The gray background is the average SSN index.
