Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 4, 2010. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1053 | S22 | W62 | 04 | 0010 | Beta | Feb 28, 2010 | Mar 7, 2010 | Mar 21, 2010 |
| № 1052 | S17 | W56 | 03 | 0010 | Beta | Mar 1, 2010 | Mar 8, 2010 | Mar 21, 2010 |
| № 1051 | N15 | W28 | 02 | 0010 | Alpha | Mar 3, 2010 | Mar 10, 2010 | Mar 23, 2010 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1981 to March 2010. The gray background is the average SSN index.
