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) | |
|---|---|---|---|---|---|---|---|---|
| № 2632 | N14 | W08 | 06 | 0010 | Beta | Feb 1, 2017 | Feb 8, 2017 | Feb 22, 2017 |
| № 2631 | S05 | W38 | 05 | 0010 | Beta | Jan 30, 2017 | Feb 6, 2017 | Feb 19, 2017 |
| № 2629 | N15 | W38 | 01 | 0040 | Alpha | Jan 30, 2017 | Feb 6, 2017 | Feb 20, 2017 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1988, January to 2017, February. Gray background - average solar cycle.
