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) | |
|---|---|---|---|---|---|---|---|---|
| № 9916 | S17 | E71 | 04 | 0150 | Beta | Apr 28, 2002 | May 5, 2002 | May 19, 2002 |
| № 9915 | N11 | E54 | 01 | 0030 | Alpha | Apr 27, 2002 | May 4, 2002 | May 17, 2002 |
| № 9914 | N04 | E44 | 05 | 0070 | Beta | Apr 26, 2002 | May 3, 2002 | May 17, 2002 |
| № 9913 | S17 | W02 | 08 | 0010 | Beta | Apr 23, 2002 | Apr 30, 2002 | May 13, 2002 |
| № 9912 | N10 | W12 | 21 | 0270 | Beta-Gamma | Apr 22, 2002 | Apr 29, 2002 | May 12, 2002 |
| № 9910 | S20 | W33 | 13 | 0100 | Beta | Apr 20, 2002 | Apr 27, 2002 | May 11, 2002 |
| № 9909 | N07 | W24 | 02 | 0050 | Alpha | Apr 21, 2002 | Apr 28, 2002 | May 12, 2002 |
| № 9907 | S03 | W63 | 02 | 0020 | Beta | Apr 18, 2002 | Apr 25, 2002 | May 9, 2002 |
| № 9906 | S14 | W90 | 14 | 0330 | Beta-Gamma | Apr 16, 2002 | Apr 23, 2002 | May 7, 2002 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1973, January to 2002, April. Gray background - average solar cycle.
