Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1429 | N18 | E68 | 04 | 0290 | Beta-Gamma | Mar 10, 2012 | Mar 17, 2012 | Mar 31, 2012 |
| № 1428 | S17 | E51 | 04 | 0040 | Beta | Mar 9, 2012 | Mar 16, 2012 | Mar 29, 2012 |
| № 1427 | N15 | W31 | 03 | 0020 | Beta | Mar 3, 2012 | Mar 9, 2012 | Mar 23, 2012 |
| № 1423 | N17 | W48 | 01 | 0080 | Alpha | Mar 1, 2012 | Mar 8, 2012 | Mar 22, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to March 2012. The gray background is the average SSN index.
