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) | |
|---|---|---|---|---|---|---|---|---|
| № 9449 | S15 | E69 | 01 | 0110 | Alpha | May 9, 2001 | May 16, 2001 | May 30, 2001 |
| № 9448 | N22 | E60 | 02 | 0140 | Alpha | May 9, 2001 | May 16, 2001 | May 29, 2001 |
| № 9447 | N12 | W13 | 13 | 0060 | Beta | May 3, 2001 | May 10, 2001 | May 23, 2001 |
| № 9445 | N25 | E23 | 40 | 0330 | Beta-Gamma | May 6, 2001 | May 13, 2001 | May 27, 2001 |
| № 9444 | S11 | E13 | 02 | 0000 | Alpha | May 5, 2001 | May 12, 2001 | May 25, 2001 |
| № 9442 | N27 | W17 | 01 | 0060 | Alpha | May 3, 2001 | May 10, 2001 | May 24, 2001 |
| № 9441 | N07 | W29 | 26 | 0290 | Beta | May 2, 2001 | May 9, 2001 | May 22, 2001 |
| № 9436 | S11 | W72 | 01 | 0100 | Alpha | Apr 29, 2001 | May 5, 2001 | May 19, 2001 |
| № 9433 | N20 | W91 | 03 | 0090 | Beta-Gamma | Apr 27, 2001 | May 4, 2001 | May 18, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, May. Gray background - average solar cycle.
