Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 21, 2012. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1407 | N17 | W11 | 08 | 0050 | Beta | Jan 21, 2012 | Jan 28, 2012 | Feb 11, 2012 |
| № 1405 | N11 | E15 | 01 | 0030 | Alpha | Jan 23, 2012 | Jan 30, 2012 | Feb 12, 2012 |
| № 1402 | N28 | E05 | 09 | 0310 | Beta | Jan 22, 2012 | Jan 29, 2012 | Feb 12, 2012 |
| № 1401 | N16 | E02 | 19 | 0380 | Beta | Jan 22, 2012 | Jan 29, 2012 | Feb 12, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to January 2012. The gray background is the average SSN index.
