Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on November 19, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2687 | S09 | E20 | 04 | 0030 | Alpha | Nov 21, 2017 | Nov 28, 2017 | Dec 12, 2017 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1988 to November 2017. The gray background is the average SSN index.
