Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 1, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1564 | S13 | E70 | 03 | 0060 | Beta | Sep 7, 2012 | Sep 14, 2012 | Sep 28, 2012 |
| № 1563 | S24 | E58 | 04 | 0040 | Beta | Sep 6, 2012 | Sep 13, 2012 | Sep 27, 2012 |
| № 1562 | S15 | E40 | 02 | 0030 | Beta | Sep 5, 2012 | Sep 12, 2012 | Sep 26, 2012 |
| № 1561 | S11 | E03 | 07 | 0040 | Beta | Sep 2, 2012 | Sep 9, 2012 | Sep 23, 2012 |
| № 1560 | N04 | E09 | 15 | 0180 | Beta-Gamma | Sep 3, 2012 | Sep 9, 2012 | Sep 23, 2012 |
| № 1559 | N17 | E24 | 01 | 0010 | Alpha | Sep 4, 2012 | Sep 11, 2012 | Sep 24, 2012 |
| № 1555 | N08 | W12 | 04 | 0030 | Beta | Sep 1, 2012 | Sep 8, 2012 | Sep 21, 2012 |
| № 1554 | N15 | W79 | 09 | 0160 | Beta | Aug 27, 2012 | Sep 3, 2012 | Sep 16, 2012 |
| № 1553 | S21 | W47 | 09 | 0180 | Beta | Aug 29, 2012 | Sep 5, 2012 | Sep 19, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to September 2012. The gray background is the average SSN index.
