Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 18, 2006. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 900 | S05 | E04 | 13 | 0040 | Beta | Jul 19, 2006 | Jul 26, 2006 | Aug 8, 2006 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1977 to July 2006. The gray background is the average SSN index.
