Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 13, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9828 | S16 | E40 | 01 | 0010 | Alpha | Feb 17, 2002 | Feb 24, 2002 | Mar 9, 2002 |
| № 9826 | S22 | E14 | 06 | 0030 | Beta | Feb 15, 2002 | Feb 22, 2002 | Mar 8, 2002 |
| № 9825 | N13 | E32 | 30 | 0310 | Beta-Gamma | Feb 16, 2002 | Feb 23, 2002 | Mar 9, 2002 |
| № 9824 | N22 | E32 | 01 | 0140 | Alpha | Feb 16, 2002 | Feb 23, 2002 | Mar 9, 2002 |
| № 9823 | S04 | W17 | 04 | 0120 | Beta | Feb 13, 2002 | Feb 19, 2002 | Mar 5, 2002 |
| № 9822 | N18 | E14 | 04 | 0030 | Beta | Feb 15, 2002 | Feb 22, 2002 | Mar 8, 2002 |
| № 9821 | S13 | W36 | 30 | 0350 | Beta | Feb 11, 2002 | Feb 18, 2002 | Mar 4, 2002 |
| № 9811 | S26 | W43 | 04 | 0040 | Beta | Feb 11, 2002 | Feb 17, 2002 | Mar 3, 2002 |
| № 9810 | N10 | W66 | 01 | 0070 | Alpha | Feb 9, 2002 | Feb 16, 2002 | Mar 1, 2002 |
| № 9809 | S06 | W89 | 01 | 0030 | Alpha | Feb 7, 2002 | Feb 14, 2002 | Feb 27, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to February 2002. The gray background is the average SSN index.
