Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 9925 | S14 | W36 | 08 | 0040 | Beta | Apr 24, 2002 | May 1, 2002 | May 15, 2002 |
| № 9924 | S15 | W20 | 06 | 0030 | Beta | Apr 25, 2002 | May 2, 2002 | May 16, 2002 |
| № 9923 | S03 | W47 | 06 | 0040 | Beta | Apr 23, 2002 | Apr 30, 2002 | May 14, 2002 |
| № 9922 | N23 | E25 | 05 | 0030 | Beta | Apr 29, 2002 | May 6, 2002 | May 20, 2002 |
| № 9920 | S24 | W28 | 02 | 0020 | Beta | Apr 25, 2002 | May 2, 2002 | May 16, 2002 |
| № 9919 | N12 | E46 | 07 | 0100 | Beta | Apr 30, 2002 | May 7, 2002 | May 21, 2002 |
| № 9916 | S17 | E20 | 09 | 0050 | Beta | Apr 29, 2002 | May 5, 2002 | May 19, 2002 |
| № 9915 | N12 | E01 | 10 | 0130 | Beta | Apr 27, 2002 | May 4, 2002 | May 17, 2002 |
| № 9914 | N04 | W10 | 10 | 0180 | Beta | Apr 26, 2002 | May 3, 2002 | May 17, 2002 |
| № 9913 | S14 | W58 | 06 | 0040 | Beta | Apr 23, 2002 | Apr 29, 2002 | May 13, 2002 |
| № 9912 | N11 | W65 | 06 | 0130 | Beta | Apr 22, 2002 | Apr 29, 2002 | May 12, 2002 |
| № 9910 | S21 | W86 | 02 | 0040 | Alpha | Apr 20, 2002 | Apr 27, 2002 | May 11, 2002 |
| № 9909 | N08 | W76 | 01 | 0020 | Alpha | Apr 21, 2002 | Apr 28, 2002 | May 12, 2002 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1973, January to 2002, April. Gray background - average solar cycle.
