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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 13, 2012. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1545 | S14 | W32 | 01 | 0010 | Beta | Aug 11, 2012 | Aug 18, 2012 | Sep 1, 2012 |
| № 1544 | S31 | W43 | 02 | 0050 | Beta | Aug 10, 2012 | Aug 18, 2012 | Sep 1, 2012 |
| № 1543 | N20 | E09 | 05 | 0230 | Beta-Gamma | Aug 15, 2012 | Aug 21, 2012 | Sep 4, 2012 |
| № 1542 | S13 | W02 | 06 | 0060 | Beta-Gamma | Aug 14, 2012 | Aug 21, 2012 | Sep 3, 2012 |
| № 1540 | S25 | W60 | 01 | 0030 | Alpha | Aug 9, 2012 | Aug 16, 2012 | Aug 30, 2012 |
| № 1538 | S22 | W85 | 01 | 0010 | Alpha | Aug 7, 2012 | Aug 14, 2012 | Aug 28, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to August 2012. The gray background is the average SSN index.
