Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 17, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1436 | S12 | E64 | 01 | 0010 | Alpha | Mar 23, 2012 | Mar 29, 2012 | Apr 12, 2012 |
| № 1435 | S25 | W22 | 05 | 0020 | Beta | Mar 16, 2012 | Mar 23, 2012 | Apr 6, 2012 |
| № 1434 | S22 | W12 | 04 | 0030 | Beta | Mar 17, 2012 | Mar 24, 2012 | Apr 7, 2012 |
| № 1433 | N13 | W02 | 11 | 0100 | Beta | Mar 18, 2012 | Mar 25, 2012 | Apr 7, 2012 |
| № 1432 | N14 | W24 | 20 | 0080 | Beta-Gamma | Mar 16, 2012 | Mar 23, 2012 | Apr 5, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to March 2012. The gray background is the average SSN index.
