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) | |
|---|---|---|---|---|---|---|---|---|
| № 9448 | N22 | E74 | 01 | 0070 | Alpha | May 9, 2001 | May 16, 2001 | May 29, 2001 |
| № 9447 | N12 | E02 | 03 | 0010 | Beta | May 3, 2001 | May 10, 2001 | May 23, 2001 |
| № 9445 | N26 | E38 | 28 | 0390 | Beta | May 6, 2001 | May 13, 2001 | May 27, 2001 |
| № 9444 | S09 | E25 | 03 | 0020 | Beta | May 5, 2001 | May 12, 2001 | May 25, 2001 |
| № 9442 | N29 | W04 | 04 | 0060 | Beta | May 3, 2001 | May 10, 2001 | May 24, 2001 |
| № 9441 | N06 | W15 | 25 | 0250 | Beta | May 2, 2001 | May 9, 2001 | May 22, 2001 |
| № 9436 | S11 | W58 | 01 | 0130 | Alpha | Apr 29, 2001 | May 5, 2001 | May 19, 2001 |
| № 9433 | N19 | W81 | 07 | 0300 | Beta-Gamma | Apr 27, 2001 | May 4, 2001 | May 17, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, May. Gray background - average solar cycle.
