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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 12, 2005. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 743 | S07 | E50 | 01 | 0190 | Alpha | Mar 17, 2005 | Mar 24, 2005 | Apr 6, 2005 |
| № 742 | S05 | E17 | 20 | 0190 | Beta | Mar 14, 2005 | Mar 21, 2005 | Apr 4, 2005 |
| № 741 | N12 | W26 | 08 | 0110 | Beta | Mar 11, 2005 | Mar 18, 2005 | Mar 31, 2005 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to March 2005. The gray background is the average SSN index.
