Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 23, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 726 | S01 | E16 | 02 | 0020 | Beta | Jan 25, 2005 | Feb 1, 2005 | Feb 14, 2005 |
| № 725 | S04 | W47 | 09 | 0190 | Beta-Gamma | Jan 20, 2005 | Jan 27, 2005 | Feb 10, 2005 |
| № 723 | N07 | E09 | 03 | 0120 | Beta | Jan 25, 2005 | Jan 31, 2005 | Feb 14, 2005 |
| № 720 | N11 | W91 | 06 | 0900 | Beta-Gamma-Delta | Jan 17, 2005 | Jan 24, 2005 | Feb 6, 2005 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to January 2005. The gray background is the average SSN index.
