Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 31, 2017. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2631 | S04 | W22 | 03 | 0010 | Beta | Jan 30, 2017 | Feb 6, 2017 | Feb 19, 2017 |
| № 2630 | N16 | E56 | 01 | 0010 | Alpha | Feb 5, 2017 | Feb 12, 2017 | Feb 26, 2017 |
| № 2629 | N15 | W20 | 01 | 0060 | Alpha | Jan 30, 2017 | Feb 6, 2017 | Feb 20, 2017 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1988 to January 2017. The gray background is the average SSN index.
