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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 2, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1685 | S13 | E72 | 02 | 0020 | Alpha | Mar 8, 2013 | Mar 15, 2013 | Mar 29, 2013 |
| № 1684 | N18 | E13 | 02 | 0010 | Alpha | Mar 4, 2013 | Mar 11, 2013 | Mar 25, 2013 |
| № 1683 | S16 | E54 | 08 | 0170 | Beta | Mar 7, 2013 | Mar 14, 2013 | Mar 28, 2013 |
| № 1682 | S18 | W42 | 12 | 0240 | Beta-Gamma | Feb 28, 2013 | Mar 7, 2013 | Mar 20, 2013 |
| № 1681 | N17 | E06 | 02 | 0010 | Alpha | Mar 3, 2013 | Mar 10, 2013 | Mar 24, 2013 |
| № 1680 | S29 | W13 | 02 | 0010 | Beta | Mar 2, 2013 | Mar 9, 2013 | Mar 23, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to March 2013. The gray background is the average SSN index.
