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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 17, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1115 | S28 | E52 | 01 | 0170 | Alpha | Oct 22, 2010 | Oct 29, 2010 | Nov 12, 2010 |
| № 1113 | N17 | E38 | 01 | 0130 | Alpha | Oct 21, 2010 | Oct 28, 2010 | Nov 10, 2010 |
| № 1112 | S18 | W26 | 16 | 0120 | Beta-Gamma | Oct 16, 2010 | Oct 23, 2010 | Nov 5, 2010 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1981 to October 2010. The gray background is the average SSN index.
