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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 27, 2013. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1663 | S10 | E46 | 03 | 0010 | Beta | Jan 31, 2013 | Feb 7, 2013 | Feb 21, 2013 |
| № 1662 | N28 | E28 | 01 | 0050 | Alpha | Jan 30, 2013 | Feb 6, 2013 | Feb 20, 2013 |
| № 1661 | N15 | E08 | 05 | 0030 | Beta | Jan 29, 2013 | Feb 4, 2013 | Feb 18, 2013 |
| № 1660 | N13 | W81 | 06 | 0100 | Beta | Jan 22, 2013 | Jan 29, 2013 | Feb 11, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to January 2013. The gray background is the average SSN index.
