Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9850 | N27 | W49 | 04 | 0030 | Beta | Feb 25, 2002 | Mar 4, 2002 | Mar 18, 2002 |
| № 9848 | S20 | E07 | 08 | 0050 | Beta | Mar 1, 2002 | Mar 8, 2002 | Mar 22, 2002 |
| № 9847 | S14 | E12 | 04 | 0010 | Beta | Mar 2, 2002 | Mar 9, 2002 | Mar 22, 2002 |
| № 9846 | S03 | W80 | 03 | 0180 | Beta | Feb 23, 2002 | Mar 2, 2002 | Mar 15, 2002 |
| № 9845 | N17 | E23 | 22 | 0160 | Beta | Mar 3, 2002 | Mar 9, 2002 | Mar 23, 2002 |
| № 9844 | N22 | W19 | 22 | 0190 | Beta | Feb 27, 2002 | Mar 6, 2002 | Mar 20, 2002 |
| № 9843 | S26 | W06 | 10 | 0020 | Beta | Feb 28, 2002 | Mar 7, 2002 | Mar 21, 2002 |
| № 9842 | S19 | W61 | 06 | 0210 | Beta | Feb 24, 2002 | Mar 3, 2002 | Mar 17, 2002 |
| № 9839 | S18 | W73 | 11 | 0250 | Beta | Feb 23, 2002 | Mar 2, 2002 | Mar 16, 2002 |
| № 9837 | N10 | W21 | 02 | 0000 | Alpha | Feb 27, 2002 | Mar 6, 2002 | Mar 20, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to February 2002. The gray background is the average SSN index.
