Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 13, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1434 | S23 | E44 | 02 | 0050 | Beta | Mar 17, 2012 | Mar 24, 2012 | Apr 7, 2012 |
| № 1433 | N11 | E50 | 02 | 0080 | Beta | Mar 18, 2012 | Mar 25, 2012 | Apr 7, 2012 |
| № 1432 | N13 | E26 | 09 | 0080 | Beta | Mar 16, 2012 | Mar 23, 2012 | Apr 5, 2012 |
| № 1430 | N22 | W67 | 01 | 0030 | Alpha | Mar 9, 2012 | Mar 16, 2012 | Mar 30, 2012 |
| № 1429 | N18 | W50 | 14 | 0380 | Beta-Gamma | Mar 10, 2012 | Mar 17, 2012 | Mar 31, 2012 |
| № 1428 | S15 | W72 | 01 | 0030 | Alpha | Mar 9, 2012 | Mar 15, 2012 | Mar 29, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to March 2012. The gray background is the average SSN index.
