Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 27, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2640 | N11 | E22 | 02 | 0010 | Beta | Mar 2, 2017 | Mar 9, 2017 | Mar 22, 2017 |
| № 2639 | S08 | W63 | 02 | 0010 | Beta | Feb 23, 2017 | Mar 2, 2017 | Mar 16, 2017 |
| № 2638 | N18 | W18 | 01 | 0100 | Alpha | Feb 27, 2017 | Mar 6, 2017 | Mar 19, 2017 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1988 to February 2017. The gray background is the average SSN index.
