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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 1, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 739 | S04 | E21 | 01 | 0000 | Alpha | Mar 4, 2005 | Mar 10, 2005 | Mar 24, 2005 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to March 2005. The gray background is the average SSN index.
