Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 1, 2001. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 9447 | N12 | E17 | 03 | 0010 | Beta | May 3, 2001 | May 10, 2001 | May 24, 2001 |
| № 9446 | S05 | W34 | 04 | 0010 | Beta | Apr 29, 2001 | May 6, 2001 | May 20, 2001 |
| № 9445 | N24 | E50 | 21 | 0330 | Beta | May 6, 2001 | May 13, 2001 | May 27, 2001 |
| № 9444 | S11 | E40 | 04 | 0020 | Beta | May 5, 2001 | May 12, 2001 | May 25, 2001 |
| № 9442 | N28 | E11 | 01 | 0050 | Alpha | May 3, 2001 | May 10, 2001 | May 24, 2001 |
| № 9441 | N07 | W02 | 29 | 0240 | Beta | May 2, 2001 | May 8, 2001 | May 22, 2001 |
| № 9437 | N09 | W43 | 03 | 0020 | Alpha | Apr 29, 2001 | May 5, 2001 | May 19, 2001 |
| № 9436 | S10 | W44 | 01 | 0130 | Alpha | Apr 29, 2001 | May 5, 2001 | May 19, 2001 |
| № 9433 | N17 | W72 | 22 | 0440 | Beta-Gamma | Apr 26, 2001 | May 3, 2001 | May 17, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to May 2001. The gray background is the average SSN index.
