Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9831 | S11 | W50 | 01 | 0000 | Alpha | Feb 15, 2002 | Feb 22, 2002 | Mar 7, 2002 |
| № 9830 | S18 | E34 | 28 | 0360 | Beta-Gamma | Feb 21, 2002 | Feb 28, 2002 | Mar 14, 2002 |
| № 9829 | S05 | E38 | 05 | 0050 | Beta | Feb 22, 2002 | Feb 28, 2002 | Mar 14, 2002 |
| № 9825 | N12 | W34 | 24 | 0290 | Beta-Gamma | Feb 16, 2002 | Feb 23, 2002 | Mar 9, 2002 |
| № 9824 | N23 | W33 | 01 | 0140 | Alpha | Feb 16, 2002 | Feb 23, 2002 | Mar 9, 2002 |
| № 9819 | S31 | W81 | 02 | 0010 | Beta | Feb 12, 2002 | Feb 20, 2002 | Mar 6, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to February 2002. The gray background is the average SSN index.
