Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 1, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9889 | S20 | E50 | 02 | 0020 | Beta | Apr 6, 2002 | Apr 13, 2002 | Apr 26, 2002 |
| № 9888 | S13 | E48 | 05 | 0190 | Beta | Apr 5, 2002 | Apr 12, 2002 | Apr 26, 2002 |
| № 9887 | N01 | E39 | 11 | 0240 | Beta-Gamma | Apr 5, 2002 | Apr 12, 2002 | Apr 25, 2002 |
| № 9886 | N11 | E32 | 08 | 0100 | Beta | Apr 4, 2002 | Apr 11, 2002 | Apr 25, 2002 |
| № 9885 | N10 | E16 | 19 | 0600 | Beta-Gamma | Apr 3, 2002 | Apr 10, 2002 | Apr 23, 2002 |
| № 9884 | S19 | W09 | 05 | 0100 | Beta | Apr 1, 2002 | Apr 8, 2002 | Apr 22, 2002 |
| № 9878 | N08 | W66 | 02 | 0020 | Beta | Mar 28, 2002 | Apr 4, 2002 | Apr 17, 2002 |
| № 9876 | S14 | W80 | 01 | 0000 | Alpha | Mar 27, 2002 | Apr 3, 2002 | Apr 16, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to April 2002. The gray background is the average SSN index.
