Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9843 | S26 | E60 | 03 | 0020 | Alpha | Mar 1, 2002 | Mar 7, 2002 | Mar 21, 2002 |
| № 9842 | S18 | E05 | 02 | 0010 | Alpha | Feb 24, 2002 | Mar 3, 2002 | Mar 17, 2002 |
| № 9841 | S21 | W18 | 06 | 0060 | Beta | Feb 22, 2002 | Mar 1, 2002 | Mar 15, 2002 |
| № 9840 | S12 | E60 | 02 | 0020 | Beta | Feb 28, 2002 | Mar 7, 2002 | Mar 21, 2002 |
| № 9839 | S17 | W04 | 01 | 0000 | Alpha | Feb 24, 2002 | Mar 2, 2002 | Mar 16, 2002 |
| № 9838 | N05 | W29 | 04 | 0020 | Beta | Feb 22, 2002 | Feb 28, 2002 | Mar 14, 2002 |
| № 9837 | N09 | E46 | 06 | 0120 | Beta | Feb 27, 2002 | Mar 6, 2002 | Mar 20, 2002 |
| № 9835 | S08 | W85 | 03 | 0110 | Beta | Feb 17, 2002 | Feb 24, 2002 | Mar 10, 2002 |
| № 9834 | N03 | E15 | 02 | 0010 | Alpha | Feb 25, 2002 | Mar 4, 2002 | Mar 17, 2002 |
| № 9830 | S19 | W32 | 32 | 0440 | Beta-Gamma-Delta | Feb 21, 2002 | Feb 28, 2002 | Mar 14, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to February 2002. The gray background is the average SSN index.
