Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 17, 2002. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9786 | S26 | E09 | 03 | 0030 | Beta | Jan 19, 2002 | Jan 26, 2002 | Feb 9, 2002 |
| № 9785 | N10 | E16 | 07 | 0180 | Beta | Jan 19, 2002 | Jan 26, 2002 | Feb 8, 2002 |
| № 9783 | S12 | E27 | 06 | 0170 | Beta | Jan 20, 2002 | Jan 27, 2002 | Feb 9, 2002 |
| № 9782 | N06 | E07 | 16 | 0260 | Beta | Jan 18, 2002 | Jan 25, 2002 | Feb 8, 2002 |
| № 9781 | S05 | E01 | 02 | 0080 | Alpha | Jan 18, 2002 | Jan 25, 2002 | Feb 7, 2002 |
| № 9779 | N29 | W36 | 02 | 0110 | Alpha | Jan 15, 2002 | Jan 22, 2002 | Feb 5, 2002 |
| № 9778 | S14 | W33 | 09 | 0040 | Beta | Jan 15, 2002 | Jan 22, 2002 | Feb 5, 2002 |
| № 9775 | S06 | W84 | 06 | 0160 | Beta-Gamma | Jan 12, 2002 | Jan 18, 2002 | Feb 1, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to January 2002. The gray background is the average SSN index.
