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) | |
|---|---|---|---|---|---|---|---|---|
| № 9452 | S09 | E67 | 01 | 0020 | Alpha | May 14, 2001 | May 21, 2001 | Jun 3, 2001 |
| № 9451 | S21 | E38 | 02 | 0120 | Alpha | May 12, 2001 | May 19, 2001 | Jun 2, 2001 |
| № 9450 | S02 | W49 | 04 | 0020 | Beta | May 5, 2001 | May 12, 2001 | May 26, 2001 |
| № 9449 | S17 | E04 | 02 | 0090 | Beta | May 9, 2001 | May 16, 2001 | May 30, 2001 |
| № 9448 | N22 | W06 | 06 | 0130 | Beta | May 9, 2001 | May 15, 2001 | May 29, 2001 |
| № 9447 | N12 | W84 | 03 | 0120 | Beta | May 3, 2001 | May 9, 2001 | May 23, 2001 |
| № 9445 | N25 | W42 | 15 | 0110 | Beta-Gamma | May 6, 2001 | May 13, 2001 | May 27, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, May. Gray background - average solar cycle.
