No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 17, 2008. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1000 | S13 | E52 | 01 | 0010 | Alpha | Jul 22, 2008 | Jul 29, 2008 | Aug 11, 2008 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1979 to July 2008. The gray background is the average SSN index.
