Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9870 | S18 | E51 | 06 | 0120 | Beta | Mar 18, 2002 | Mar 25, 2002 | Apr 7, 2002 |
| № 9869 | N24 | E29 | 01 | 0010 | Alpha | Mar 16, 2002 | Mar 23, 2002 | Apr 6, 2002 |
| № 9868 | N19 | E20 | 08 | 0040 | Beta | Mar 16, 2002 | Mar 22, 2002 | Apr 5, 2002 |
| № 9867 | S31 | E04 | 01 | 0000 | Alpha | Mar 14, 2002 | Mar 21, 2002 | Apr 5, 2002 |
| № 9866 | S10 | E35 | 27 | 0900 | Beta-Gamma-Delta | Mar 17, 2002 | Mar 23, 2002 | Apr 6, 2002 |
| № 9865 | N14 | E18 | 01 | 0000 | Alpha | Mar 15, 2002 | Mar 22, 2002 | Apr 5, 2002 |
| № 9864 | N18 | E03 | 03 | 0040 | Beta | Mar 14, 2002 | Mar 21, 2002 | Apr 4, 2002 |
| № 9859 | S11 | W56 | 01 | 0010 | Alpha | Mar 10, 2002 | Mar 17, 2002 | Mar 30, 2002 |
| № 9856 | S03 | W45 | 01 | 0150 | Alpha | Mar 11, 2002 | Mar 17, 2002 | Mar 31, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to March 2002. The gray background is the average SSN index.
