Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9831 | S11 | W39 | 02 | 0010 | Beta | Feb 15, 2002 | Feb 22, 2002 | Mar 7, 2002 |
| № 9830 | S20 | E46 | 21 | 0210 | Beta | Feb 21, 2002 | Feb 28, 2002 | Mar 14, 2002 |
| № 9829 | S06 | E54 | 04 | 0040 | Beta | Feb 22, 2002 | Mar 1, 2002 | Mar 14, 2002 |
| № 9828 | S15 | W16 | 02 | 0010 | Beta | Feb 17, 2002 | Feb 23, 2002 | Mar 9, 2002 |
| № 9825 | N13 | W22 | 32 | 0290 | Beta-Gamma | Feb 16, 2002 | Feb 23, 2002 | Mar 9, 2002 |
| № 9824 | N23 | W20 | 02 | 0140 | Beta | Feb 16, 2002 | Feb 23, 2002 | Mar 9, 2002 |
| № 9819 | S28 | W70 | 01 | 0010 | Alpha | Feb 12, 2002 | Feb 19, 2002 | Mar 5, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to February 2002. The gray background is the average SSN index.
