Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 9, 2013. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1670 | N19 | E14 | 10 | 0070 | Beta | Feb 11, 2013 | Feb 18, 2013 | Mar 4, 2013 |
| № 1669 | N07 | E13 | 02 | 0010 | Alpha | Feb 11, 2013 | Feb 18, 2013 | Mar 3, 2013 |
| № 1667 | N23 | W23 | 04 | 0080 | Beta | Feb 8, 2013 | Feb 15, 2013 | Mar 1, 2013 |
| № 1665 | N13 | W70 | 01 | 0120 | Alpha | Feb 5, 2013 | Feb 11, 2013 | Feb 25, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to February 2013. The gray background is the average SSN index.
