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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 23, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 745 | N12 | E43 | 07 | 0110 | Beta | Mar 27, 2005 | Apr 3, 2005 | Apr 17, 2005 |
| № 744 | S13 | W26 | 11 | 0070 | Beta | Mar 22, 2005 | Mar 29, 2005 | Apr 11, 2005 |
| № 743 | S08 | W96 | 01 | 0180 | Alpha | Mar 17, 2005 | Mar 24, 2005 | Apr 6, 2005 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to March 2005. The gray background is the average SSN index.
