Sunspots and active regions — February 17, 2006
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) | |
|---|---|---|---|---|---|---|---|---|
| № 855 | N06 | E28 | 01 | 0020 | Alpha | Feb 20, 2006 | Feb 27, 2006 | Mar 12, 2006 |
| № 854 | S07 | E10 | 06 | 0030 | Beta | Feb 19, 2006 | Feb 26, 2006 | Mar 11, 2006 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1977, January to 2006, February. Gray background - average solar cycle.
