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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 20, 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 | E02 | 05 | 0010 | Beta | Jan 21, 2012 | Jan 28, 2012 | Feb 11, 2012 |
| № 1406 | S24 | W82 | 01 | 0010 | Alpha | Jan 15, 2012 | Jan 21, 2012 | Feb 4, 2012 |
| № 1405 | N13 | E27 | 01 | 0040 | Alpha | Jan 23, 2012 | Jan 30, 2012 | Feb 12, 2012 |
| № 1403 | S19 | W22 | 05 | 0030 | Beta | Jan 19, 2012 | Jan 26, 2012 | Feb 9, 2012 |
| № 1402 | N29 | E17 | 12 | 0500 | Beta | Jan 22, 2012 | Jan 29, 2012 | Feb 12, 2012 |
| № 1401 | N18 | E15 | 22 | 0540 | Beta-Gamma | Jan 22, 2012 | Jan 29, 2012 | Feb 12, 2012 |
| № 1399 | S23 | E05 | 01 | 0010 | Alpha | Jan 21, 2012 | Jan 28, 2012 | Feb 11, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to January 2012. The gray background is the average SSN index.
