Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 18, 2005. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 763 | S14 | W14 | 24 | 0140 | Beta-Gamma | May 18, 2005 | May 25, 2005 | Jun 8, 2005 |
| № 759 | N11 | W54 | 01 | 0220 | Beta | May 15, 2005 | May 22, 2005 | Jun 5, 2005 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to May 2005. The gray background is the average SSN index.