Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 17, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1405 | N13 | E67 | 01 | 0020 | Alpha | Jan 23, 2012 | Jan 30, 2012 | Feb 12, 2012 |
| № 1404 | N12 | W27 | 03 | 0030 | Beta | Jan 16, 2012 | Jan 23, 2012 | Feb 5, 2012 |
| № 1402 | N28 | E55 | 06 | 0480 | Beta | Jan 22, 2012 | Jan 29, 2012 | Feb 12, 2012 |
| № 1401 | N17 | E53 | 13 | 0420 | Beta | Jan 22, 2012 | Jan 29, 2012 | Feb 11, 2012 |
| № 1399 | S22 | E45 | 01 | 0020 | Alpha | Jan 21, 2012 | Jan 28, 2012 | Feb 11, 2012 |
| № 1398 | N12 | W48 | 05 | 0050 | Beta | Jan 14, 2012 | Jan 21, 2012 | Feb 4, 2012 |
| № 1396 | N25 | W17 | 10 | 0040 | Beta | Jan 17, 2012 | Jan 24, 2012 | Feb 6, 2012 |
| № 1395 | N20 | W42 | 01 | 0010 | Alpha | Jan 15, 2012 | Jan 22, 2012 | Feb 4, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to January 2012. The gray background is the average SSN index.
