Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 4, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1413 | N08 | W31 | 15 | 0090 | Beta | Feb 3, 2012 | Feb 9, 2012 | Feb 23, 2012 |
| № 1410 | N17 | W27 | 04 | 0190 | Beta | Feb 3, 2012 | Feb 10, 2012 | Feb 23, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to February 2012. The gray background is the average SSN index.
