Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 25, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2639 | S09 | W34 | 02 | 0020 | Alpha | Feb 23, 2017 | Mar 2, 2017 | Mar 16, 2017 |
| № 2638 | N18 | E08 | 05 | 0120 | Beta | Feb 27, 2017 | Mar 5, 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.
