Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 23, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9793 | S12 | E03 | 05 | 0020 | Beta | Jan 24, 2002 | Jan 31, 2002 | Feb 13, 2002 |
| № 9791 | S02 | W44 | 10 | 0070 | Beta | Jan 21, 2002 | Jan 27, 2002 | Feb 10, 2002 |
| № 9790 | N29 | W13 | 03 | 0010 | Beta | Jan 23, 2002 | Jan 30, 2002 | Feb 13, 2002 |
| № 9789 | N18 | W40 | 04 | 0010 | Beta | Jan 21, 2002 | Jan 28, 2002 | Feb 10, 2002 |
| № 9788 | N18 | E02 | 18 | 0200 | Beta-Gamma | Jan 24, 2002 | Jan 31, 2002 | Feb 14, 2002 |
| № 9787 | S06 | E21 | 13 | 0400 | Beta-Gamma | Jan 25, 2002 | Feb 1, 2002 | Feb 15, 2002 |
| № 9786 | S26 | W71 | 01 | 0050 | Alpha | Jan 18, 2002 | Jan 25, 2002 | Feb 8, 2002 |
| № 9785 | N13 | W64 | 02 | 0090 | Beta | Jan 19, 2002 | Jan 26, 2002 | Feb 8, 2002 |
| № 9783 | S10 | W50 | 10 | 0140 | Beta | Jan 20, 2002 | Jan 27, 2002 | Feb 9, 2002 |
| № 9782 | N08 | W73 | 01 | 0090 | Alpha | Jan 18, 2002 | Jan 25, 2002 | Feb 8, 2002 |
| № 9781 | S06 | W80 | 01 | 0050 | Alpha | Jan 18, 2002 | Jan 25, 2002 | Feb 7, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to January 2002. The gray background is the average SSN index.
