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) | |
|---|---|---|---|---|---|---|---|---|
| № 9451 | S22 | E76 | 01 | 0080 | Alpha | May 12, 2001 | May 19, 2001 | Jun 2, 2001 |
| № 9450 | S03 | W07 | 03 | 0020 | Beta | May 5, 2001 | May 12, 2001 | May 26, 2001 |
| № 9449 | S17 | E44 | 01 | 0080 | Alpha | May 9, 2001 | May 16, 2001 | May 30, 2001 |
| № 9448 | N20 | E34 | 05 | 0120 | Beta | May 9, 2001 | May 15, 2001 | May 29, 2001 |
| № 9447 | N12 | W41 | 26 | 0260 | Beta-Gamma | May 3, 2001 | May 10, 2001 | May 23, 2001 |
| № 9445 | N25 | W04 | 37 | 0300 | Beta-Gamma | May 6, 2001 | May 13, 2001 | May 27, 2001 |
| № 9444 | S11 | W16 | 01 | 0000 | Alpha | May 5, 2001 | May 12, 2001 | May 25, 2001 |
| № 9442 | N27 | W41 | 01 | 0040 | Alpha | May 3, 2001 | May 10, 2001 | May 24, 2001 |
| № 9441 | N06 | W57 | 10 | 0200 | Beta-Gamma | May 2, 2001 | May 8, 2001 | May 22, 2001 |
| № 9436 | S08 | W99 | 01 | 0050 | Alpha | Apr 29, 2001 | May 5, 2001 | May 19, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, May. Gray background - average solar cycle.
