No image for the selected date
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.
