No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1100 | S24 | E61 | 01 | 0010 | Alpha | Aug 23, 2010 | Aug 30, 2010 | Sep 12, 2010 |
| № 1099 | N17 | W82 | 04 | 0060 | Beta | Aug 12, 2010 | Aug 18, 2010 | Sep 1, 2010 |
| № 1098 | N15 | W39 | 04 | 0030 | Beta | Aug 15, 2010 | Aug 22, 2010 | Sep 4, 2010 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1981 to August 2010. The gray background is the average SSN index.
