Sunspots and active regions — January 23, 2007
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) | |
|---|---|---|---|---|---|---|---|---|
| № 939 | S04 | W43 | 13 | 0120 | Beta | Jan 21, 2007 | Jan 28, 2007 | Feb 10, 2007 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1978, January to 2007, January. Gray background - average solar cycle.
