Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 2639 | S08 | W48 | 03 | 0020 | Beta | Feb 23, 2017 | Mar 2, 2017 | Mar 16, 2017 |
| № 2638 | N18 | W03 | 02 | 0100 | Beta | Feb 27, 2017 | Mar 6, 2017 | Mar 19, 2017 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1988, January to 2017, February. Gray background - average solar cycle.
