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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1420 | N11 | E10 | 01 | 0090 | Alpha | Feb 20, 2012 | Feb 27, 2012 | Mar 11, 2012 |
| № 1419 | N28 | E06 | 06 | 0040 | Beta | Feb 19, 2012 | Feb 27, 2012 | Mar 12, 2012 |
| № 1418 | S23 | W55 | 05 | 0010 | Beta | Feb 15, 2012 | Feb 22, 2012 | Mar 7, 2012 |
| № 1416 | S17 | W84 | 01 | 0110 | Alpha | Feb 13, 2012 | Feb 19, 2012 | Mar 4, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to February 2012. The gray background is the average SSN index.
