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) | |
|---|---|---|---|---|---|---|---|---|
| № 9453 | S08 | W28 | 05 | 0020 | Beta | May 9, 2001 | May 16, 2001 | May 29, 2001 |
| № 9452 | S09 | E41 | 01 | 0020 | Alpha | May 14, 2001 | May 21, 2001 | Jun 3, 2001 |
| № 9451 | S21 | E13 | 06 | 0140 | Beta | May 12, 2001 | May 19, 2001 | Jun 2, 2001 |
| № 9450 | S01 | W78 | 01 | 0010 | Alpha | May 5, 2001 | May 12, 2001 | May 25, 2001 |
| № 9449 | S16 | W21 | 05 | 0060 | Beta | May 9, 2001 | May 16, 2001 | May 30, 2001 |
| № 9448 | N21 | W30 | 03 | 0110 | Beta | May 9, 2001 | May 16, 2001 | May 29, 2001 |
| № 9445 | N25 | W67 | 07 | 0080 | 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.
