Sunspots and active regions — January 23, 2013
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 1661 | N13 | E63 | 01 | 0020 | Alpha | Jan 29, 2013 | Feb 4, 2013 | Feb 18, 2013 |
| № 1660 | N14 | W25 | 21 | 0190 | Beta-Gamma | Jan 22, 2013 | Jan 29, 2013 | Feb 11, 2013 |
| № 1658 | S12 | W57 | 01 | 0060 | Alpha | Jan 19, 2013 | Jan 26, 2013 | Feb 9, 2013 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1984, January to 2013, January. Gray background - average solar cycle.
