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 | W21 | 05 | 0040 | Beta | Apr 24, 2002 | May 1, 2002 | May 15, 2002 |
| № 9924 | S17 | W07 | 18 | 0060 | Beta | Apr 25, 2002 | May 2, 2002 | May 16, 2002 |
| № 9923 | S03 | W31 | 08 | 0020 | Beta | Apr 24, 2002 | Apr 30, 2002 | May 14, 2002 |
| № 9922 | N21 | E40 | 03 | 0010 | Beta | Apr 29, 2002 | May 6, 2002 | May 20, 2002 |
| № 9920 | S23 | W15 | 02 | 0020 | Beta | Apr 25, 2002 | May 2, 2002 | May 16, 2002 |
| № 9919 | N12 | E57 | 06 | 0230 | Beta | Apr 30, 2002 | May 7, 2002 | May 21, 2002 |
| № 9916 | S18 | E32 | 19 | 0100 | Beta | Apr 28, 2002 | May 5, 2002 | May 19, 2002 |
| № 9915 | N12 | E14 | 11 | 0180 | Beta | Apr 27, 2002 | May 4, 2002 | May 17, 2002 |
| № 9914 | N04 | E04 | 23 | 0230 | Beta | Apr 26, 2002 | May 3, 2002 | May 17, 2002 |
| № 9913 | S16 | W44 | 13 | 0040 | Beta | Apr 23, 2002 | Apr 29, 2002 | May 13, 2002 |
| № 9912 | N09 | W52 | 15 | 0230 | Beta | Apr 22, 2002 | Apr 29, 2002 | May 12, 2002 |
| № 9910 | S21 | W74 | 02 | 0080 | Alpha | Apr 20, 2002 | Apr 27, 2002 | May 11, 2002 |
| № 9909 | N07 | W64 | 01 | 0050 | 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.
