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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 15, 2015. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2471 | S21 | E45 | 03 | 0020 | Beta | Dec 19, 2015 | Dec 26, 2015 | Jan 9, 2016 |
| № 2470 | N13 | E56 | 10 | 0360 | Beta | Dec 20, 2015 | Dec 27, 2015 | Jan 10, 2016 |
| № 2469 | N18 | E42 | 02 | 0050 | Beta | Dec 19, 2015 | Dec 26, 2015 | Jan 9, 2016 |
| № 2468 | S15 | E12 | 03 | 0030 | Beta | Dec 17, 2015 | Dec 24, 2015 | Jan 6, 2016 |
| № 2465 | S06 | W31 | 02 | 0010 | Alpha | Dec 14, 2015 | Dec 20, 2015 | Jan 3, 2016 |
| № 2463 | S09 | W76 | 01 | 0010 | Alpha | Dec 10, 2015 | Dec 17, 2015 | Dec 31, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to December 2015. The gray background is the average SSN index.
