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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 4, 2010. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1039 | S29 | W59 | 10 | 0220 | Beta | Dec 31, 2009 | Jan 7, 2010 | Jan 22, 2010 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1981 to January 2010. The gray background is the average SSN index.
